Welcome to Bleeping Computer
Since here at BC we don't condone illegal activity I find myself obliged to tell you to read your Terms of Service from your Internet Service Provider to make sure you are aloud to even run a server. Alot of ISPs ban servers because of the increased bandwitch...
Now the legal crap behind us. Great you wanna make a server... Send me the IP when it's done I like to meat new people
Now what you need to do is forward a port. I can help you better if you give me your routers model number.
You have to acess your router. Often this is done by typing 192.168.0.1 in Internet Explorer (and if you are inteligent in Firefox). This will bring up a place to type in the login and password... Often by default the login is Admin and the password is left blank (again if I have the model number I can confirm this).
Here is a good site to help you with this.http://www.portforward.com/
If you are using a D-Link router here is a nice FAQ from D-Linkhttp://support.dlink.com/faq/view.asp?prod_id=969
If you don't use a D-Link router and go to the port forward website the ports numbers you need to forward are 27005 and 27015.
Edited by Klinkaroo, 27 June 2006 - 10:17 PM.