There are plenty of Java IRC clients, most open source, therefore free. Only problem that I had last time I looked for one was some don't work in Gecko. Take a look around freshmeat.net and sf.net for some.
You forgot to move it
Chances are I am gonna try and get a refund for jIRC it has too many flaws, both the last stable release and the beta have too many problems, and I recieved no reply to my e-mails.