Working on the update class right now, but in the meantime go ahead and download xchat.
Once you do that, look for the server list and select Freenode.
Once you're connected to Freenode, select the drop down menu Server and select Join Channel.
A little window pops up asking what channel. Type #McPy and you should be in! I'm in there now.
Here's a link that should help a bit more.