[HELP] Server is not Public...

Hi, my problem is that, when I host the server on my dad's comp, I can't login on MY comp. I have forwarded all ports and I am able to login from my dad's comp, but I want to host the server so all my friends call play, however it is not working. Plus, if you set the ip to anything but 127.0.0.1 for the Listen Host where the ip by default is 127.0.0.1, the logon server will crash after loading. It'll just shutdown. Is it supposed to do that? If it's not how do I fix it and am I supposed to put my external IP there? Thank you for your time.

Well... I usally leave the Listen Host as is, there is a 'hosts' file somewhere in System32 and somewhere in 'Drivers' At the bottom you need to change some Info, and add your external IP, hostname such as "freewow.servegame.org"

There is more, just cant remeber now, you might want to look at some guides mate.