So, that's the easy part. Now, to the more complicated stuff. In general, to be able to access ScannerCast from a random place on the Internet, you will need to:
Ensure the computer running ScannerCast allows incoming connections to ScannerCast on the port you’re using -- In other words, setup your local computer's firewall software properly;
Configure your router/firewall to allow incoming access to the port you’ve configure ScannerCast to use, and to forward requests coming in on that port to the system on which ScannerCast is running.
Determine your external IP address (provided by your internet service provider). One way to determine your external IP address is to go to an external site for this purpose such as
What Is My IP Address? Lookup IP, Hide IP, Change IP, Trace IP and more....
From anywhere on the Internet, using your favorite media player (Winamp, iTunes, Windows Media Player, or whatever) connect to
http://”IPADDRESS”:”PORT” where “IPADDRESS” is your external IP address and “PORT” is the port you’ve configured ScannerCast to use
None of this except specifying the port number on the Config tab, is ScannerCast specific. It’s the exact same procedure that you’d use to enable a multi-player computer game or any other network service.
I know that's probably not clear enough for most folks who didn't already know how to do this. But due to the wide variety in people's network configurations, modems, routers, firewalls, etc, it's very hard to generalize. Google around, and if it still sounds like a lot of gibberish to you, maybe you can get a computer-savvy friend to help. Remember, they don't have to know anything about ScannerCast, they just need to know a bit about home computer networks, including routers and firewalls.