First of all, make sure you have at least one of the three necessary databases installed: SQLite, MySQL, or PostgreSQL. In case you decide to use MySQL or PostgreSQL, make sure also that you have TQt's MySQL or PostgreSQL plugin properly installed. The program won't work without database support.
Please notice that this application is beta, meaning everything is expected to work, but the possibility is there that some things might not. Note that the more our users tells us about bugs, the faster we can find them and fix them.
To download the package, do:
svn co -N svn://anonsvn.kde.org/home/kde/trunk/extragear/utils krecipes-svn