Login module

[Nastuz]

Hello to everybody,

I have a portal, running on a PostgreSQL database, with its own user list. I installed mySQL on the same machine and I'm planning to install vbulletin.

But I'd like to do the following:

- when an user is created or modified in the PostgreSQL DB, create or modify the corresponding user in vbulletin's DB (or isolate the login module of VB to allow data fetch in the other database);
- when an user is logged in on the portal, he should enter the forum without passing for the login phase.

The second option seems a bit simpler to implement. For the first one, is there some developement documentation around here? Is the VB login an isolated module?

Thank you in advance.