Get the latest Mumble client here:
Once installed click ""Add New"" and label it whatever you want
Make a user name.
Hit OK and you are ready!
There is a channel for every hosted game on the site plus a general chat!
The Official MLPG.co Minecraft server is a vanilla 1.9.2 Minecraft PvE server with a few plugins to keep your stuff and builds safe, also a built in registration system for those of you who obtained the game through less honest means. If the game auto registers you change your password to something you can remember, if not use /register to create your own password!
Also in devleopment is a modpack with the ponyfan in mind checkout EmptyAudio's Ponecraft Thread for more info.