diff --git a/src/apt.cpp b/src/apt.cpp
index 96c2031..13160d3 100644
--- a/src/apt.cpp
+++ b/src/apt.cpp
@@ -80,14 +80,14 @@ static TQString open_html_head(const TQString& title, bool links, AptProtocol co
   if (links) rowspan = "rowspan=\"2\"";
   TQString ret =
    html_head
-    .tqarg(config.stylesheet())
-    .tqarg(title)
+    .arg(config.stylesheet())
+    .arg(title)
    + html_head_table
-    .tqarg(config.header_background())
-    .tqarg(rowspan)
-    .tqarg(config.logo())
-    .tqarg(config.logo_alt())
-    .tqarg(title);
+    .arg(config.header_background())
+    .arg(rowspan)
+    .arg(config.logo())
+    .arg(config.logo_alt())
+    .arg(title);
 
   if (links)
   {
@@ -106,7 +106,7 @@ static TQString open_html_head(const TQString& title, bool links, AptProtocol co
 static TQString add_html_head_link(const TQString& url, const TQString& name, const TQString& long_desc)
 {
   static const TQString format("\t\t<td><a href=\"%1\" title=\"%2\">%3</a></td>\n");
-  return format.tqarg(url).tqarg(long_desc).tqarg(name);
+  return format.arg(url).arg(long_desc).arg(name);
 }
 static TQString close_html_head()
 {
@@ -132,8 +132,8 @@ TQString AptProtocol::make_html_tail(const TQString& note, bool with_form)
     ret = "<hr>\n" + make_html_form();
 
   if (!note.isEmpty())
-    ret += html_tail.tqarg(note + ". " + i18n("Page generated by kio_apt."));
-  else ret += html_tail.tqarg(i18n("Page generated by kio_apt."));
+    ret += html_tail.arg(note + ". " + i18n("Page generated by kio_apt."));
+  else ret += html_tail.arg(i18n("Page generated by kio_apt."));
 
   return ret;
 }
@@ -159,7 +159,7 @@ static const TQString
                  "</tr>\n");
 
 static TQString make_html_form_line(const TQString& type, const TQString& label)
-{ return html_form_line.tqarg(type).tqarg(label).tqarg(type).tqarg(type); }
+{ return html_form_line.arg(type).arg(label).arg(type).arg(type); }
 
 
 static TQString make_extform_cmd(bool ext_form, const KURL& query)
@@ -206,7 +206,7 @@ TQString AptProtocol::make_html_form() const
       stream << make_html_form_line("fsearch", i18n("File search"));
     stream << make_html_form_line("show", i18n("Package info"));
   }
-  stream << html_form_end.tqarg( i18n("Search") );
+  stream << html_form_end.arg( i18n("Search") );
 
   if (online)
   {
@@ -293,7 +293,7 @@ bool AptProtocol::check_validpackage(const TQString& query)
   static TQRegExp rx_pkgname(rxs_pkgname);
   if (!rx_pkgname.exactMatch(query))
   {
-    error( ERR_SLAVE_DEFINED, i18n("\"%1\" is not a valid package name").tqarg(query) );
+    error( ERR_SLAVE_DEFINED, i18n("\"%1\" is not a valid package name").arg(query) );
     return false;
   }
   return true;
@@ -487,18 +487,18 @@ void AptProtocol::search( const TQString& query, const QueryOptions& /*options*/
 {
   mimeType("text/html");
 
-  data(open_html_head(i18n("Package search result for \"%1\"").tqarg(query), false, *this));
+  data(open_html_head(i18n("Package search result for \"%1\"").arg(query), false, *this));
 
   m_parser.reset(new Parsers::Search);
   (*m_parser)(this, "begin", query);
   if (!m_process.search( query ))
   {
-    error(ERR_SLAVE_DEFINED, i18n("Error launching the search").tqarg(query));
+    error(ERR_SLAVE_DEFINED, i18n("Error launching the search").arg(query));
     return;
   }
   (*m_parser)(this, "end", TQString());
 
-  data(make_html_tail( i18n("%1 results").tqarg(m_parser -> result_count())) );
+  data(make_html_tail( i18n("%1 results").arg(m_parser -> result_count())) );
   data(TQByteArray());
   finished();
 }
@@ -554,7 +554,7 @@ void AptProtocol::show(const TQString& package, const QueryOptions& options)
   {
     if (!m_process.policy( package ))
     {
-      error(ERR_SLAVE_DEFINED, i18n("Can't launch \"apt-cache policy %1\"").tqarg(package));
+      error(ERR_SLAVE_DEFINED, i18n("Can't launch \"apt-cache policy %1\"").arg(package));
       return;
     }
 
@@ -565,13 +565,13 @@ void AptProtocol::show(const TQString& package, const QueryOptions& options)
     if (can_list)
     {
       KURL url = buildURL("list", package);
-      s << open_html_head(i18n("Package description for \"%1\"").tqarg(package), true, *this)
+      s << open_html_head(i18n("Package description for \"%1\"").arg(package), true, *this)
         <<   add_html_head_link(url.htmlURL(), i18n("List package files"), "")
         << close_html_head();
     }
     else
     {
-      s << open_html_head(i18n("Package description for \"%1\"").tqarg(package), false, *this);
+      s << open_html_head(i18n("Package description for \"%1\"").arg(package), false, *this);
     }
     data(buffer);
   }
@@ -584,12 +584,12 @@ void AptProtocol::show(const TQString& package, const QueryOptions& options)
   {
     if (!m_process.show(package))
     {
-      error(ERR_SLAVE_DEFINED, i18n("Can't launch \"apt-cache show %1\"").tqarg(package));
+      error(ERR_SLAVE_DEFINED, i18n("Can't launch \"apt-cache show %1\"").arg(package));
       return;
     }
     if (!m_parser -> result_count())
     {
-      data("<div class=\"error\">" + i18n("No package found named \"%1\"").tqarg(package) + "</div>\n");
+      data("<div class=\"error\">" + i18n("No package found named \"%1\"").arg(package) + "</div>\n");
       data(make_html_tail());
       data(TQByteArray());
       finished();
@@ -615,7 +615,7 @@ void AptProtocol::show(const TQString& package, const QueryOptions& options)
       (*m_parser)(this, "begin", TQString());
       if (!m_adept_batch -> list(package))
       {
-        error(ERR_SLAVE_DEFINED, i18n("Error listing files of %1").tqarg(package));
+        error(ERR_SLAVE_DEFINED, i18n("Error listing files of %1").arg(package));
         return;
       }
       (*m_parser)(this, "end", TQString());
@@ -654,13 +654,13 @@ void AptProtocol::policy( const TQString& query, const QueryOptions& /*options*/
 
   mimeType("text/html");
 
-  data( open_html_head(i18n("Apt policy for \"%1\"").tqarg(query), false, *this) );
+  data( open_html_head(i18n("Apt policy for \"%1\"").arg(query), false, *this) );
 
   m_parser.reset(new Parsers::Policy(query, m_act));
   (*m_parser)(this, "begin", TQString());
   if (!m_process.policy( query ))
   {
-    error(ERR_SLAVE_DEFINED, i18n("Can't launch the policy for %1").tqarg(query));
+    error(ERR_SLAVE_DEFINED, i18n("Can't launch the policy for %1").arg(query));
     return;
   }
   (*m_parser)(this, "end", TQString());
@@ -693,18 +693,18 @@ void AptProtocol::searchfile(const TQString& query, const QueryOptions& /*option
   if (!can_searchfile(true)) return;
 
   mimeType("text/html");
-  data( open_html_head(i18n("File search for \"%1\"").tqarg(query), false, *this) + html_dpkgs_begin );
+  data( open_html_head(i18n("File search for \"%1\"").arg(query), false, *this) + html_dpkgs_begin );
 
   m_parser.reset(new Parsers::FileSearch);
   (*m_parser)(this, "begin", TQString());
   if (!m_adept_batch -> search( query ))
   {
-    error(ERR_SLAVE_DEFINED, i18n("Can't launch the package manager").tqarg(query));
+    error(ERR_SLAVE_DEFINED, i18n("Can't launch the package manager").arg(query));
     return;
   }
   (*m_parser)(this, "end", TQString());
 
-  data( html_dpkgs_end + make_html_tail(i18n("%1 files found").tqarg(m_parser -> result_count())) );
+  data( html_dpkgs_end + make_html_tail(i18n("%1 files found").arg(m_parser -> result_count())) );
   data(TQByteArray());
   finished();
 }
@@ -736,7 +736,7 @@ void AptProtocol::listfiles(const TQString& query, const QueryOptions& /*options
   TQString buffer;
   TQTextOStream stream(&buffer);
   stream
-        << open_html_head(i18n("Files in \"%1\"").tqarg(query), true, *this)
+        << open_html_head(i18n("Files in \"%1\"").arg(query), true, *this)
         <<   add_html_head_link(ret_url.htmlURL(), i18n("Show package info"), "")
         << close_html_head()
         << endl;
@@ -746,7 +746,7 @@ void AptProtocol::listfiles(const TQString& query, const QueryOptions& /*options
   (*m_parser)(this, "begin", TQString());
   if (!m_adept_batch -> list( query ))
   {
-    error(ERR_SLAVE_DEFINED, i18n("Can't launch the package manager").tqarg(query));
+    error(ERR_SLAVE_DEFINED, i18n("Can't launch the package manager").arg(query));
     return;
   }
   (*m_parser)(this, "end", TQString());
@@ -818,16 +818,16 @@ void AptProtocol::adept_batch(const TQString& query, const QueryOptions& options
   if (pcount == 1)
   {
     if (query == "install")
-      ip =  SlaveBase::messageBox(QuestionYesNo, i18n("Do you want to install %1 ?").tqarg(plist[0]), i18n("Package Installation"));
+      ip =  SlaveBase::messageBox(QuestionYesNo, i18n("Do you want to install %1 ?").arg(plist[0]), i18n("Package Installation"));
     else
-      ip =  SlaveBase::messageBox(QuestionYesNo, i18n("Do you want to remove %1 ?").tqarg(plist[0]), i18n("Package Removal"));
+      ip =  SlaveBase::messageBox(QuestionYesNo, i18n("Do you want to remove %1 ?").arg(plist[0]), i18n("Package Removal"));
   }
   else
   {
     if (query == "install")
-      ip = SlaveBase::messageBox(QuestionYesNo,i18n("Do you want to install the following %1 packages ?\n%2").tqarg(pcount).tqarg(options["package"]));
+      ip = SlaveBase::messageBox(QuestionYesNo,i18n("Do you want to install the following %1 packages ?\n%2").arg(pcount).arg(options["package"]));
     else
-      ip = SlaveBase::messageBox(QuestionYesNo,i18n("Do you want to remove the following %1 packages ?\n").tqarg(pcount).tqarg(options["package"]));
+      ip = SlaveBase::messageBox(QuestionYesNo,i18n("Do you want to remove the following %1 packages ?\n").arg(pcount).arg(options["package"]));
   }
 
   kdDebug(DEBUG_ZONE) << command << endl;
@@ -849,7 +849,7 @@ void AptProtocol::adept_batch(const TQString& query, const QueryOptions& options
       {
         if (!m_process.policy( plist[i] ))
         {
-          error(ERR_SLAVE_DEFINED, i18n("Can't launch \"apt-cache policy %1\"").tqarg(plist[i]));
+          error(ERR_SLAVE_DEFINED, i18n("Can't launch \"apt-cache policy %1\"").arg(plist[i]));
           return;
         }
 
@@ -874,7 +874,7 @@ void AptProtocol::adept_batch(const TQString& query, const QueryOptions& options
       else
       {
         TQString toto = puninst.join(" ");
-        messageBox(Information,i18n("There was a problem installing %1.").tqarg(toto));
+        messageBox(Information,i18n("There was a problem installing %1.").arg(toto));
       }
       return;
     }
diff --git a/src/aptcache.cpp b/src/aptcache.cpp
index c921920..f864f2d 100644
--- a/src/aptcache.cpp
+++ b/src/aptcache.cpp
@@ -37,7 +37,7 @@ AptCache::~AptCache() {}
 
 static TQStringList received(TQString& buffer, char* input, int input_len)
 {
-  buffer += TQString::tqfromLatin1(input, input_len);
+  buffer += TQString::fromLatin1(input, input_len);
   TQStringList ret = TQStringList::split('\n', buffer, true);
   if (!buffer.endsWith("\n"))
   {
@@ -255,19 +255,19 @@ void AptCache::receivePolicy(const TQStringList& lines)
     TQString data( (*l).stripWhiteSpace() );
     if (rx_pkgname.exactMatch(*l))
       emit token("package", rx_pkgname.cap(1));
-    else if (data.tqstartsWith("Installed:", false))
+    else if (data.startsWith("Installed:", false))
     {
       data = data.right(data.length() - 11);
       emit token("installed", data);
       m_installed = data;
     }
-    else if (data.tqstartsWith("Candidate:", false))
+    else if (data.startsWith("Candidate:", false))
     {
       data = data.right(data.length() - 11);
       emit token("candidate", data);
       m_candidate = data;
     }
-    else if (data.tqstartsWith("Version table:", false))
+    else if (data.startsWith("Version table:", false))
       emit token("version_table", TQString());
     else if (rx_location.search(data) > -1)
       emit token("location", data);
diff --git a/src/dpkg.cpp b/src/dpkg.cpp
index 89ff615..1993276 100644
--- a/src/dpkg.cpp
+++ b/src/dpkg.cpp
@@ -86,7 +86,7 @@ void Dpkg::receiveSearch( const TQStringList & line )
     if ((*i).isEmpty()) continue;
     if (rx_notfound.exactMatch(*i))
     {
-      emit token("error", i18n("%1 not found").tqarg(rx_notfound.cap(1)));
+      emit token("error", i18n("%1 not found").arg(rx_notfound.cap(1)));
       continue;
     }
 
@@ -123,7 +123,7 @@ void Dpkg::receiveList( const TQStringList & line )
   for (TQStringList::ConstIterator i = line.begin(); i != line.end(); ++i)
   {
     if (rx_notfound.search(*i) > -1)
-      emit token("error", i18n("Package %1 is not installed").tqarg(rx_notfound.cap(1)));
+      emit token("error", i18n("Package %1 is not installed").arg(rx_notfound.cap(1)));
     else if ((*i).startsWith("/"))
       emit token("file", *i);
   }
@@ -158,16 +158,16 @@ static const TQString html_form_combo("<select name=\"%1\" id=\"%2\">");
 static TQString make_form_text(const TQString& type, const TQString& label)
 {
 	return
-  	html_form_line_begin.tqarg(type).tqarg(label)
-   + TQString("<input type=\"text\" name=\"%1\" id=\"%2\">").tqarg(type).tqarg(type)
+  	html_form_line_begin.arg(type).arg(label)
+   + TQString("<input type=\"text\" name=\"%1\" id=\"%2\">").arg(type).arg(type)
    + html_form_line_end;
 }
 
 static TQString begin_form_combo(const TQString& type, const TQString& label)
 {
 	return
-  	html_form_line_begin.tqarg(type).tqarg(label)
-   + TQString("\t<select name=\"%1\" id=\"%2\">\n").tqarg(type).tqarg(type);
+  	html_form_line_begin.arg(type).arg(label)
+   + TQString("\t<select name=\"%1\" id=\"%2\">\n").arg(type).arg(type);
 }
 static TQString make_form_option(const TQString& name, const TQString& text)
 { return "\t\t<option value=" + name + ">" + text + "</option>\n"; }
@@ -201,7 +201,7 @@ TQString Dpkg::getOnlineForm()
     <<  make_form_option("warty", "warty")
     << end_form_combo()
 
-    << html_form_end.tqarg(i18n("Go online!"));
+    << html_form_end.arg(i18n("Go online!"));
 
   return buffer;
 }
diff --git a/src/parsers/filesearch.cpp b/src/parsers/filesearch.cpp
index 281aa63..e4185f2 100644
--- a/src/parsers/filesearch.cpp
+++ b/src/parsers/filesearch.cpp
@@ -33,7 +33,7 @@ void FileSearch::operator() (AptProtocol* slave, const TQString & tag, const TQS
     if (m_result_count)
       *slave << buffer + html_dpkgs_line_end;
 
-    *slave << html_dpkgs_line_begin.tqarg(value);
+    *slave << html_dpkgs_line_begin.arg(value);
     ++m_result_count;
     buffer = "";
   }
diff --git a/src/parsers/list.cpp b/src/parsers/list.cpp
index e4cea8e..1c38cb7 100644
--- a/src/parsers/list.cpp
+++ b/src/parsers/list.cpp
@@ -62,7 +62,7 @@ namespace Parsers
       files.sort();
       *slave <<
       	"<div class=\"filelist\">\n" + files.join("\n<br>") + "\n</div>\n"
-        "<div class=\"footer\">" + i18n("%1 files in the package").tqarg(result_count()) + "</div>\n";
+        "<div class=\"footer\">" + i18n("%1 files in the package").arg(result_count()) + "</div>\n";
       files.clear();
     }
   }
diff --git a/src/parsers/qhtmlstream.h b/src/parsers/qhtmlstream.h
index 7d27569..5f60599 100644
--- a/src/parsers/qhtmlstream.h
+++ b/src/parsers/qhtmlstream.h
@@ -10,7 +10,7 @@
 #ifndef TQHtmlStream_H
 #define TQHtmlStream_H
 
-#include <tqtextstream.h>
+#include <textstream.h>
 #include <tqstringlist.h>
 
 class TQHtmlStream;
diff --git a/src/parsers/show.cpp b/src/parsers/show.cpp
index 84ace04..5ffbc82 100644
--- a/src/parsers/show.cpp
+++ b/src/parsers/show.cpp
@@ -101,16 +101,16 @@ void Show::operator() (AptProtocol* slave, const TQString& tag, const TQString&
     {
       close_item(indent, buffer);
       buffer +=
-      	html_attribute_begin.tqarg(value)
+      	html_attribute_begin.arg(value)
         + "&nbsp;";
 
       close_item(indent, buffer);
-      buffer += html_attribute_begin.tqarg("&nbsp;");
+      buffer += html_attribute_begin.arg("&nbsp;");
     }
     else if (value != "Version" && value != "Package")
     {
       close_item(indent, buffer);
-      buffer += html_attribute_begin.tqarg(value);
+      buffer += html_attribute_begin.arg(value);
     }
 
     if (value == "Description")
@@ -141,14 +141,14 @@ void Show::operator() (AptProtocol* slave, const TQString& tag, const TQString&
     if (value == m_installed)
     {
       action.setQuery("remove");
-      version = TQString("<div class=\"version-header-installed\" id=\"%1\">").tqarg(item_id)
-                + i18n("Installed version %1").tqarg(value);
+      version = TQString("<div class=\"version-header-installed\" id=\"%1\">").arg(item_id)
+                + i18n("Installed version %1").arg(value);
     }
     else
     {
       action.setQuery("install");
-      version = TQString("<div class=\"version-header\" id=\"%1\">").tqarg(item_id)
-                + i18n("Version %1").tqarg(value);
+      version = TQString("<div class=\"version-header\" id=\"%1\">").arg(item_id)
+                + i18n("Version %1").arg(value);
     }
 
     action.addQueryItem("package", m_package);