Delete a Message
You do not have to register to upload pictures there 
Hmm. I muust be thinking of Photobucket. But in any case, I found this little inscription on ImageShack's TOS
Don't upload anything that can be even remotely construed as illegal, pornographic, copyrighted, harassment, or spam. If you do, we will ban you, delete all your images, prevent you from viewing any images hosted on ImageShack®, and report you to the proper authorities (if necessary).
It seems like I could get in some trobule for posting some of these, but I'll risk it if possible.