Well.. the IRC channel has been brought back to life and you can now join us in irc.gamesurge.net / #OLFSL.
If you are using Opera to browse the net, just click the 'irc.gamesurge.net' -link colored orange in the upper part of out site and built-in IRC-plugin should pop up and connect you in (not sure what versions of Opera have this feature though).
If you're using Firefox, download addition called 'Chatzilla'. After you've restarted FF as instructed you should be able to operate the same as with Opera.
And finally, if using Internet Explode.. Explorer you'll have to wait untill I find suitable Java IRC client and time to fit it in.