It's one of those "out of the box" forum deals. I just took it and customized it for us. The one thing I would like to change is the way the posts go into the system. Other than that, I've been happy with it so far.
Oh, almost forgot...there's none of that "change it within 15 minutes if you need to" stuff...you can go back and edit your post as late as you want to with no problem.