Thought I would share this feature since it's something I've been using lately. If you look in the upper left hand side of the menus for the forums there is a little + sign.
If you click on this it expands the threads so that you can see not only the original post but all of the replys as well. I like it when there gets to be more than about 5 posts because I can just click through the new ones and not have to scroll a mile down to the bottom.