Flash Question - Communicating over a Server

[multimediocrity]

When I took a Flash class, we make a multiplayer game by making two versions of the game on two separate computers communicate with each other. One of the features was a chatroom. I wasn't sure how the connection was made, but when I put it on my own server, the connection doesn't establish. Apparently it requires more than just a server... there's something I need to do to connect them. Any idea what?

Thanks,
M

[multimediocrity]

OH! Ok! I've got it! I need an RTMP (Real Time Messaging Protocol) on my server. My web host doesn't offer this. Is there any other way I can get this?