Frog CMS

I installed Frog CMS successfully but when I go to the main page or admin page or login page I see a blank page.

1. I see a blank page probably because in php.ini display_error OFF (I’m not a server admin, that’s why I’m guessing)
2. I have read this topic: http://forum.madebyfrog.com/topic/727, and other close to subject
3. I have PHP 5.2.0 and MySQL 5.0.51a
4. DB tables were created correctly

This have something to do with apache configuration. I can ask my admin, but what about?