Hi I recently bought the Futurama DVDs Volumes 1-3 on ebay and there great but all three of them are missing the main cover. And im kind of a dvd perfectionist and i like having the WHOLE set so does any1 know a web site where i can purchase a replacement box or just the main cover? I already called FOX but they refuse to give me an empty box even if I pay for it. thanks in advance.

If it's missing something it was supposed to have, you need to take it up with the seller on eBay. If it was sold as-is, then you got what you paid for. I don't know of any site that sells empty DVD boxes.

If you're a perfectionist, you won't buy DVDs on eBay.

Plenty of dvd cover sites around the net. Download a new cover, print it out and pop it in a new case. Cases are available all over the web, and at some big box retailers.
Check out the dvd case subforum here at dvdtalk.