starting a game

I'm new and wanting to join a game. when i chose a game and click 'join game' it opens the board, but I don't then know how to join. My name doesn't show as having joined. what am I doing wrong? Thank you
Conquer Club, a free online multiplayer variation of a popular world domination board game.
http://www.tools.conquerclub.com/forum/
http://www.tools.conquerclub.com/forum/viewtopic.php?f=6&t=2052