Integrated database, vB vs Mambo

[LoRdGd]

Hello
I want to make a site based on joomla or mambo. Is it possible to integrate users login data to the site?

Now i have separately users data for forum and site. I can delete old site and build a new one, in base from the forum (ofcourse if its possible).

Anybody know how to do it?
Its nesesary to use a bridge like bbpixel?

Optionaly i can use other site manager, it musn`t be a joomla.

[technopuzzle]

What version of Joomla?
What version of VBulletin?

I currently use the bridge at bbpixel.com and integrate Joomla 1.0.15 and VB 3.7.1 without any problems.

Both Joomla and VB must share the same database and it uses cookies for logging in. But it works and both sets of users can be merged.