World Of Stunting already has an IRC chat room. This is basically just an instant messaging room, similar to a large scale msn conversation. To join it you can use an IRC client such as mIRC if you are willing to download a client, or there are other methods available such as ChatZilla.
To join once you are in your IRC client join the server irc.sa-mp.com (type /s irc.sa-mp.com) then join #WorldOfStunting (/j #WorldOfStunting)