So, I assume you dont want it to be a doamin of itself so to speak.
Which would mean nameservers of its own, etc etc, you just want a name to link to, correct?
As long as you have a DNS entry for the server I dont really see the problem.
I should mention though that I havent worked with web stuff in a while, so I might be in error, but it should work by just setting up an address and linking to it.
Say your server has the address 195.195.195.195, the nameserver would point images.dbzfancentral.com to that address, and you should be able to link to that server like any other server.
Say you have a docs directory on the server with the image domain.jpg, and this is your webroot, in that case you would link to images.dbzfancentral.com/domain.jpg, shouldnt be any problems with that as far as I can see.