First, you need to download the client program from.www.ventrilo.com
Install it, run it and follow these instructions for setup.
Cick Ok buttons.
Cick Ok button and write this info.
Now you need to define the key you will use in your keyboard to talk.
Don't define "v" or "b" or any key you use while in game.
Click with your mouse the hotkey box and press the key you want to use.
Now just press connect.