Create A Forum - Support Forums

Hope you can help out, I created a forum but I would like to access it from the own website. What I exactly need is two things:


1. User registration
If a user registers on my website I would like to have a forum user created automatically (on the background by a script?). Is that possible?


2. User logon
If a user logs on to my website and the use the link to the forum, I would like that they are logged on automatically (single sign on). Is that possible with a script and how?


Thank you very much,
Marcello