Still no reply from the register. They're probably out for the weekend, nice timing that I find out about this at 5pm EST on Friday.
Anyways, I'm guessing that it was suspended for something along the lines of people uploading malware or something stupid like that. I've been implementing virus scanning on files detected as applications by mime magic. Hopefully this will let common things like images still get expressed through since they don't have particular need to be scanned. I'm looking for some advice from anyone who might think that mime magic could be tricked to let things through, so still in the development stage. I think this should help prevent suspensions and blocks in the future.