Haha. Uhh, well you click the go online button down there in the bottom right hand corner, and then you click the expand button, then you start chatting, just like on msn i'm guessing, i've never actually used it though :p
Off topic here, but you should pretty much come to the Northern Territory in Australia!! I'm not rich enough to fly to another state XD Couldn't help myself haha.
Hey Joel! =D Nice to see you on there! Well you just have to click on "Chat". A window appears. You go online & write what you want, click on "collapse" if you want to reduce the window, and then click on "expand" if you wanna see it. Scuse me if you don't understand, it's hard to explain something in English when you're French ^^"