I'm assuming ebay can link you when using the same photobucket account to host your pics so you can put bigger pictures in your listing. I've determined that's what it has to be. I used diff windows account,paypal accounts,ips, everything like your suppose to but used the same photobucket account for hosting.
Just wanted to give everyone a heads up that they can link you that way as well.

Thanks but I dont think ebay does that.

I normally host my own images.