You can't do that through SED. You might be able to write a Java script for it, but that is basically P2P (peer-to-peer). The easiest way to do that is through Java. I have never heard of running a client through someone else's computer, though.
The Galvanic Productions Hompage:
www.GalvanicProductions.tk
For our current project, click on the Nirvana link.
