What is going wrong?
I'd try yousendit first, as there are no download limits for that (unlike rapidshare), and megaupload is sometimes a bit slow.
Yousendit links eventually expire so if you want a permanent link use rapidshare. (Although I've also heard NTL block rapidshare).
http://www.zippyvideos.com/ is another,
http://putfile.com another, although that appears not to be working right now.