If by chance you use FireFox as your browser it's quite simple. Chatzilla is an add-on for FireFox (tools>>add-ons>>get extensions search chatzilla..add it, restart FireFox, go tools, chatzilla...it will start)
All irc servers operate in a similar fashion. You need to connect to a server, you need to connect to a server of the same family...PilotHawk tries to keep a room open on the EFNET server...so whatever chat client you use, first determine how to connect to one of the EFNET servers....once connected you join the room....to do so enter /join #minibuggy in the same place you type to chat.
Hope that helps...I don't use Mirc anymore so I forget the specifics on that software. :roll: