I have sucessfully set a ftp. And its not that hard either. If you want to share your roms, isos, or whatever, heres how:
First off you can have a ftp with only 56k dial-up, but it will be very slow, so i recomend something faster(DLS, cable, ect.) Now DL a ftp server program, i have tried a few programs and i like GuildFTPd the best so far, why u ask? because its freeware and it is fairly easy to use. You can DL this program from www.downloads.com After you decide on a server program, configure it to your likeing. This is usually fairly simple, read the help file if you need to. And make sure you dont allow your whole hard drive to be allowed to DL. (i made this mistake) After it is all setup, post your ftp server address, login, and password on the FTP thread. There u go! Now you can share your files with everyone.