How can I use user system in outside directory?

[ticky]

I'm trying to make a website where the vB forums will be in the "forum" subdirectory and then the rest of my site on the base directory.

How can I use vB's user system on my main site?

E.g. I want the login box on the main page, but if the user is logged it it'll say so and list any new messages that person has.

Any demo code as well?

Thanks!

- Ticky.