vBulletin Authentication System

[Earendil]

I'm sure this question has been asked a dozen of times... but still I can't find it :(

Thing is that I've develloped a little script in PHP/MySQL and I want to integrate the vBulletin forum with it..
Basically I need to be able to use the login/member-group system.

Anyone who can point me in the right direction, it'd be greatly appreciated :)

[Earendil]

To clarify it more...
I want users to be able to login to vB (either using the vBulletin login or another login-function from my custom-written application) and then they should be logged in to both the systems.
So basically they'd share the sessions/cookies.

[meowmeow]

don't think you can share cookies... unless you build your system to understand VB cookies....
its easier to set 2 cookies when u login.
login to VB -> set VBcooke & yourSystemCookie
login to yourSystem - set VBcooke & yourSystemCookie

[Earendil]

Well, I want to make my system understand vB cookies :)
Any easy way to go around that?