I've noticed a couple of things. First, I tend to agree with the above comments regarding direct links. For example, I have a shortcut on my desktop pointing to http://tech.lds.org/forum/search.php?do=getnew
which (of course) catches me up on the latest posts.
Second, when I'm at the bottom of a thread and press "Post Reply", I have to manually scroll up to the top of the thread to find the box where I can enter my reply. (This happens in both IE7 and Firefox browsers.) To the less experienced, it would appear the button was ineffective.
Third, I find the message areas more difficult to read with my old eyes due to a lower contrast between the black text and tan background. A couple of shades lighter on the text background would really help. It would also better compliment the area where the poster's name and avatar are located, as (IMO) the two backgrounds are currently too similar in shades.
Finally (if I may be so critical) as pleasant as it looks, IMO, I find the header, tabs, navigation bar, etc. seem to take up a lot of room. It looks as if each could be trimmed to about 1/2 to 1/3 their current thicknesses and still be effective, but this is more of a personal preference than anything.
Wow, probably sorry you asked for my opinion now.
Edit: One last thing... After I posted the above comments, I scrolled back up to the top of this thread only to find I could only see about 1/2 of Tom's first post. For some reason the header took out most of it. A page refresh took me completely out of the thread and back to the main forum area. Drilling my way back into the thread, everything looked normal again. This was using Firefox, BTW.