To install Ventrilo; click on the banner above.  A new window will open. 
Once installed, simply enter your USER NAME and the SERVER settings listed below:
Hostname or IP: audioserver.cameraware.com
Port number: 4550
Password: cameraware
Default Channel: Ctinas
To enter your user name & server settings, click on the button that looks like this:

 

DON'T FORGET TO PRESS THE CTRL KEY!  Once you've got Ventrilo installed and you've connected... to speak, merely hold down the LEFT Control