Links broken when 2 vBulletins installed?

Hello,

on my Side are 2 vBulletin and a phpBB.

vbseo installation:

http://www.vbdesigns.de/forum.php

On my Demo vBulletin are the Links broken.

http://www.vbdesigns.de/demo/
http://www.vbdesigns.de/demo/forumdisplay.php?f=2
http://www.vbdesigns.de/demo/memberlist.php?

phpBB Forum:

http://www.vbdesigns.de/phpBB2/
http://www.vbdesigns.de/phpBB2/memberlist.php

Any Idea?

This issue has been documented and will be included in our FAQs.

As a reference, the following rules were used to fix this instance:

Code:

 
RewriteCond %{REQUEST_FILENAME} !admincp/
RewriteCond %{REQUEST_FILENAME} !modcp/
RewriteCond %{REQUEST_FILENAME} !demo/
RewriteCond %{REQUEST_FILENAME} !phpBB2/
RewriteRule ^(.*\.php) vbseo.php?vbseourl=$1&%{QUERY_STRING} [L]