This besteller template has been updated recently. While preparing 2 additional demo versions for this multipurpose Joomla template we've discovered some small bugs that has been fixed by the way.
I strongly encourage you to take a look at 2 examples of new demo sites of this template. The modifications has been done by using EF4 framework and setting other extensions parameters only. All changes are described step by step in the manual to let you follow them with ease.