Integrating WordPress with VB

Alright, I own a vbulletin intance. I’ve heard a lot about WordPress, and its being used by a lot of people these days, but I have yet to see a website that has BOTH wordpress and vbulletin in one server…So, my question is; Can I integrate my board (vbulletin) with WP in the sense that every username overrides the WordPress database? And when you register, you’re not registering for wordpress, instead, you’re registering for the board.

Subdreamer does this exact thing, and then some more.