Bob,
The old forum on Yuku has been problematic for years in several ways: it would go offline at times with no real explanation given by Yuku and unless registered, users had to deal with all sorts of advertising.
The new forum is owned by HRW and is a significant upgrade in features and the fact that no advertisements are used. The forum software is one of the better ones and the host is rock solid.
So, while it may look just a bit different, it will perform alot better!