Ning + vBulletin?

[محروم.كوم]

Is there any way to integrate Ning and vBulletin? I am currently using Joomla for my homepage, but I want to switch over to Ning social network. As you may know Ning has it's own registration for commenting blogs, videos, etc on the homepage. It also has it's own forum, but the Ning forum is total garbage.

So is there a way that users that signup via Ning homepage, or vBulletin forum, can operate both with the same account?

I can't have members signing up twice, and having to login two separate accounts for posting things. __DEFINE_LIKE_SHARE__