Several fixes and new features were implemented in the 
httrack forum (forum.httrack.com):

- The embedded small search engine should now correctly 
display threads

- You can now browser older messages using "Next page" at 
the end of the list, allowing to crawl old messages 
(example: <http://forum.httrack.com/index/600/>)

- The forum should be now indexed by search engines as it 
is more compliant (structured) to them