Challenge Rings
Left-click on a Challenge Ring to join that ring.
If you're the first player on the ring, you'll become the Battle Master. Otherwise you'll simply become a member of that battle.
Your location on the challenge ring is your location in the battle!
When you join the battle, your name will appear in the left window with a colored box next to it. That color is the one you'll have in the battle. To indicate that you're ready to start, click the colored box next to your name.
At first a black circle will appear in the box: 
The circle lights up when your computer has
confirmed that it can make a connection to the Battle Master: 
If the black circle never lights up, you cannot make this connection for some reason. You will want to leave this battle and join another. In rare circumstances, leaving the Challenge Ring and rejoining will allow the connection to be established.
You don't have to join a battle if you don't want to. You can leave a battle ring at any time.
If a ring says Incompatible then the players in that battle are using a version that is different enough from yours that you may not play together. It is possible that you may need to visit http://www.titanic.com/netstorm/updates.html to download a newer version or a patch.
