How to open the ports of the B-Box

Hi,
First, you need to go to the box's administration interface: http://192.168.1.254/
Then go to router configuration and NAT/PAT (don't forget to log in with the username admin and the password admin).
In this menu, you'll be able to redirect ports to a computer on your network, for that in "rule name" you can choose a predefined rule or create your own by clicking on "add a rule" (by the way, you should check the box: "Always assign this rule to this computer" so that your computer keeps the same local IP).
If it's not very clear, let me know and I'll try to post some screenshots :)