I have no idea if you can only see a maximum of 6 favorite threads, or if this is a bug. I never used the favorites. If you think there is something wrong you could report this to the creator of the messageboard. But I guess a bug like this might already have been fixed in a newer version. I'll try to find a weekend in the near future to update the boards on mIRC.com. I try to refrain from making more changes and improvements to the boards (like your sort request) because of time contraints, and the hassle to update to a newer version...
