I'm new at all this.

I've got SWM working great and flashchat integrated with it pretty good, no database glitches, just some appearance issues.

Here's my question:  I just installed Joomla and I want all three of these components to use the same database (I think).  In other words I want someone to come into my site and be able to login to the main page and be auto logged into the forum and the chat.  So what database do I tell Joomla to use and what table prefix?  Anything else I have to set for this?

Thanks for any wisdom.

Diane