Hi all :)
Just a few thoughts....
First: The activation Mail is marked as spam. I guess due to a inproper configuration of the mail send function, or the ip of the server is blacklisted.
Second: Site speed. Sometimes it is really slow here (having a 16 MBIT connection!).
Third: Some nice logo in the header, or a more "spiritual" template would be attracting more users. dont get me wrong, i personally does not require any high-end design on websites, but as a site creator for several years, i know that most users do :). if you need help by that, just let me know.