By the way, the forum itself is down for a long time, but there is still an archive on the Wayback Machine. However, the forum is closed to the outsiders, as you need to log in, in order to view the content. I'm not sure about it, by what if it's still possible to use the forum, even via archive?
I didn't have an account for that forum and I don't think it's possible to use it through wayback. However, if the posts of this forum are valuable, perhaps they should be downloaded before the forum is erased from wayback.