Not bad, not bad at all.
My only real gripe would be that big threads with multiple pages are a bit of a pain to navigate through since you have to skip each page individually now -instead of clicking the page number required.
Is there any scope to add the 'last post' info colum into it as it's really handy for quickly checking the most recent posts in threads??
Other than that I'm impressed!
Its looking good -well done Simo & Scott