I'm sitting in game right now if anyone wants to start fresh in a TCP/IP game.
I would play on BNET but I lost my CD-Keys long ago and can't really afford to buy new ones, sucks to be poor. (And I'm saving my cash for D3).
Rules aside, no one will ever be able to connect to your game unless they are physically plugged into the same router/switch/hub you are. The 192.168.xxx.xxx addresses are for local networks only. Check out the Multiplayer sub-forum and the Technical Issues Help thread.