Problem with vBadvanced 3.0 RC1

[Fabsboards]

We were recently running vBulletin 3.6.7 along with vBadvanced 3.0 RC1. We upgraded to 3.6.8 and a few days later the board was hacked.

I reinstalled vBulletin 3.6.8 and vBadvanced 3.0 RC1, but for some reason, vBadvanced will only work if if a user is logged in. IF not logged in, all I get is a blank page.

I also completely deleted the site contents and reinstalled Front Page extensions.

I checked the permissions. Guests do have access to vBadvanced.

vBulletin itself works great when not logged in.

Here's the URL's

http://www.fabsboards.com - board
http://www.fabsboards.com/cmps_index.php - vbadvanced

Everything worked great, until the site was hacked.

Any help/suggestions would be greatly appreciated.