I agree with Martie.
The problem with free servers that provide zip files to be uploaded is they become a haven for warez dealers. It's fast becoming in the best legal and financial interest of any free server to not allow any compressed files at all. Call it a case of a few people ruining it for everybody else.
Having said that freewebspace has my thumbs up too - if you're going to find anything it'll be there.
Best of luck.
Greg Moore