Chris, yet more investigation.

My comments above were disguised by two separate issues.

1. In your What's New module it is possible for the links to be wrong if you move which tab the Forum is on. This doesn't seem to affect the display, but does mean the links are wrong. This is easily fixed by going and configuring the module again, and probably isn't fixable in code, since this module would have to spot when another module is moved.
2. The main forum is affected by using activetab.tabid to populate the url's. I've implemented a fix in my code which resolves the problem, but I don't believe it is ideal. Basically I store the tabid at configuration time, and then use this instead of the activetab in the places that populate the statistics information. Basically I do this because I can't see how to get the tabid for a given moduleid, so it seems best to store it when you know you are on the correct tab.

Let me know if you want more information.

Cheers
Roger