vbulletin in wordpress page
 

Hi guys.

I have a wordpress blog and I really want to put a forum, vbulletin in particular, in one my blog pages.
It's like when they click on a tab, it'll be a forum, IN THE SAME SITE.

I found a site which does exactly what i want,

http://www.sweatdrop.com/

Can anybody please help me on how to achieve this.
thanks so much.