Um....take photos of you holding your cels and 
scan them? I don't know what else to tell you 
except this seems to happen an awful lot. I 
remember everyone making a big stink about 
Mediaminer a few months ago. 
 After dealing with their rude little potty 
mouths I would report them to their ISP but what 
would that do? It would probably fuel them into 
making another site and trying to get back at 
you. (kids have a lot of time on their hands 
after school, y'know) 
 Part of me wants to tell you that if they're not 
claiming to own the cels then maybe you should 
just turn a blind eye? The reason being that I 
can see this happening again with the rate of DBZ 
pages being created. Oh well maybe someone else 
will post some better advice or solutions for 
you. Good luck.