We've decided to update XKit. It's harder than it looks. We're not in contact with the original XKit Guy, nor do we have access to xkit.info. We currently operate at this blog and on GitHub.
Yeah, for some reason the KiwiIRC applet doesn’t work quite right on some browsers. You can use any IRC client like Mibbit to connect to the freenode network (irc.freenode.net) and join the #xkit-support channel.