i think i know the problem,i'm guessing you have a router?
if so you need to go into your router settingts ussually a ip like
http://192.168.2.1/
depending on what router you have of course
in the settings you will find firewall and under that virtual servers
in there you need to add ports 7777 to 7778
and allso 27900
ones so you can set up a server and others so you can view em..i think,personally my routers a bitch and i still can't start a server,but i can view them and join
gopostal.com has a good guide
http://www.gopostal....2/portusage.php
hope this helps