http://mezgraphics.vforums.co.uk/

One of my members said that he coudln't see all the images when he's using fire fox.. He has had this problem for a while and I don't think its his internet.

I get the same issue when viewing your forum. Apparently a number of the images hosted on your photobucket account don't exist. I'd recommend reuploading them and entering their new image URLs into the "Modify Images" page.