Now, in my defense the reason this took so long is that during our upgrade of the forum quite some time ago, the permissions page for irc broke somehow and all you see is this lovely message letting you know that some random php function is undefined...
So i went and found the config value in the database (also not trivial as everything is coded with slugs and numeric ids) and then changed it.
Long story short - go to IRC: http://www.neocodex.us/forum/ircChat/