Here's how to set up a ventrilo server:
1.) Make sure you have downloaded the Ventrilo server software.
2.) Go to your ventrilosrv folder.
3.) In the folder, you will find a ventrilo_srv configuration file
Basic outlay of configuration:
Fill out the name as your desired title, the phonetic as a voice description (make it brief), the port that you want users to connect to (make sure you have it forwarded on your router if needed), set an admin password for further server editing, then fill out the box that says [Intf]
Hope this is helpful!
By the way...feel free to join my server!
Are you sure about the external IP thing?