User database

[arkadia]

Hello,

I have already in my website an User Database with login, password, email, etc... I don't want to ask the user to register again in the Vbulletin database ...

My user database is under Interbase/Firebird

How can i take in vbulletin the user database coming from my website ? what can you sugest me ? someone have some sample of website doing that ?

thanks you by advance
stéphane