A couple of bugs I'd like to point out as well then...
Whenever I login, I seem to get greeted with a 404 error after I press login (http://www.tvforum.co.uk/forum/http?sid=a849cde4baa3b1a9a089c893aedc4f50) - and I have to go back to the main www.tvforum.co.uk
page to get back to the forums (it does actually log me in though - despite the 404 error).
Also, the problem mentioned further up the thread, about the missing pictures on the profile pages - I've been seeing this problem for quite a while now (the border edge JPGs, etc).
Also, in response to the question asked above (about why there are Guests in that thread), I thought that once a user was banned, previous posts by them show up as Guest?