This uses the PORT/PASV command in the FTP protocol to for ex. setup so you can use DCC SEND (on irc) directly to the ftp-server, useful for people who are on a modem and want to send the whole linux-distro to someone.
You can download it from the following link: https://packetstormsecurity.com/files/download/13246/ftpbounce.tar.bz2
Source: https://packetstormsecurity.com/files/13246/ftpbounce.tar.bz2.html