[StevenIceman]

Depends on which router you have (as settings and layouts vary). Try following this guide (works for Vista and 7)(in xp Click start then run then type cmd and continue following the guide)

https://sampwiki.blast.hk/wiki/Port_Forwarding

If you cannot figure it out PM me or message me on skype (viptechnical) and I will try to help you either through Skype or Teamviewer.