Be careful using this product for vBulletin ...
It has several compatibility issues with vBulletin and your users should be made aware of them before you install this and make it available to your site users..
For example, vBulletin CMS pages (ie:
http://www.xxxx.com/content.php?) are not supported at all and worse than that, any reference in your regular forums to a link there, ends up displaying some other random linked thread within your database. Really bizarre ..
It has promise, but I think they've tried to make a lot of money quickly by trying to support too many platforms at once. When it originally came out for vBulletin, it had less bugs than it does today.
Regards,
Doug