Hi Andre,
Go to your control panel, click on "Wireless Network Connection" (It might be different, if so, click on the internet connection you use.), then click on Support (a tab at the top) and it'll say your ip address.
It will probably start with 192 or 10.. (192.168.x.x, 10.x.x.x), enter your IP address into the "LAN server" text box.
The others are 0.0.0.0 because they are not enabled (Look at the checkmarks.)
When you redirect a port, you need to tell the router what computer you want to redirect it to (Even if you have one computer).
And yes, Mex was right...
If you need anymore help with this, feel free to contact me on MSN.
-xcasio

"The purpose of life is to live it, to taste experience to the utmost, to reach out eagerly and without fear for newer and richer experience."
- Eleanor Roosevelt