Are you sure the DNS record for www points to the correct IP?
When I visited the site, it showed only a screen full of ads and banners. Then I tried without www, and the site did show.
I also could not login to the forum, because the login form redirects to the version with www.
By manually pasting in links without www I was able to read this forum message. I tried the lookup and had the correct IP address showing, but the website still did not work. Only after adding the IP to the hosts file did it work. I'm guessing many people are not able to read the forum, so they don't know what's going on and how to edit the hosts file.