Welcome to the forums Apoc. First 2007 joiner I've seen yet. That is something to be proud of, lol
Quote: "What port does the game use for online play?"
Quote: "I believe it is 2303. Could be wrong, but I'm pretty sure.
Why does nothing happen when someone joins? (Just says "Waiting to join" forever)"
The most likely reason, is that the host is using a router. Your router changes your i.p. to 192.168 and causes you to be "unseen" by others. There is ways around this, I haven't been able to fix it, but it is possible.
You may know this already, but if you scroll down to the bottom of the page you will see, a search box. So just search around the forums and you will learn some interesting stuff.
Tiggle Bitties