The FTP Proxy is based on a modified version of FtpProxy 1.30 from http://christianschmidt.dk/ftpproxy. In case you want the modified sources, contact me at i.z@gmx.net

The Socks Proxy is based on a modified version of JSocks from http://sourceforge.net/projects/jsocks/. In case you want the modified sources contact me at i.z@gmx.net.
Only the Socks CONNECT command implementation is modified to connect the Remote Socket via HttpTunnel.