LinuxMCE has an irc client called Konversation embedded in the KDE enviroment.
If you are in KDE right now, or you know you have an irc client, you should be able to click the link below to connect.
If the above link does not work, open Konversation (or another irc-client) and type the following:
When you are connected, you can change you nick with this command:
Last but not least:
Now you should join the supportchannel.