TCP/IP is the protocol thats used for multiplayer connections.
You can use "The Zone" but this isn't the quickest or easiest way of connecting to a multiplayer session. I would suggest downloading FSHostspy from
http://www.chocolatesoftware.com/fshostspy. This program shows all the multiplayer sessions hostied on FSHost.. Simply copy the IP for the session you are interested in and paste it into the IP box in the multiplayer section of FS. If you wish to start your own session then simply download FSHost from the same site and follow the instructions.
Hope this helps.... give me a shout if you want any more help.
cheers
eno
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