MyBB Community Forums

How can I display a login and logout for the forums on my site's main page?

Also, make it so that it reads who is logged in and displays the "Welcome back, "username"" message, etc.?

You mean integrating your website with MyBB?

I guess so. I would love to have this feature which is on the forums, to be displayed in the main site as well.

How would I do this?

There are some tutorial for this:

http://community.mybboard.net/thread-60422.html
http://community.mybboard.net/thread-6190.html