A web based Java applet will open in a new window once you click on Chat!
Your browser should prompt you to install the necessary java runtime enviroment (jre) and browser plugin in case you don't already have it installed
If this fails to be done automatically you may have to download it yourself from sun's java site, link: http://www.java.com/en/download/
For those who would like to connect directly to the IRC server, using mIRC or any other IRC client application,
the server to find us is chat.pathfinder.gr, port 6667, and the channel: #darkroom