Teal, what I mean is, the java client is a bit discrete, being in the top right corner. It just sits there and doesn't get any attention. It also sucks. Many people can't get it to work.
What I want is a sticky thread, not in the rules with a link, but an actual sticky thread with an actual Mibbit client in the OP. Mibbit is nice and smooth, and having an actual client in a user-friendly location will raise awareness for the chat. (mIRC is obviously better, but your casual member won't use it their first time on)
My suggestions are to:
A: Make a Sticky, perhaps in Website Feedback or Real World, With the mibbit client I talked about.
B: Install a plug-in that allows the chat to show up on the bottom of the forums. The IRC plug-in I have in mind puts the chat in a spoiler, so that it will not pop up and disturb people who do not want it.