Ted supports all the popular bittorrent clients like (but not limited to):
*Azureus/Vuze *µTorrent *Bitcomet *Transmission
For ted to work with a client (the client immediately begins to download new found episodes) torrents have to be linked to this client. For most bittorent clients this is done automatically during the installation of the client so you probably don't have to worry about this. If your client doesn't support this option you can let it monitor a certain folder wherein ted will download the torrents for you. You can set this folder in the Configuration of ted.