Online gaming router port configuration, do you know how that works?

I have installed a Netgrear WNR2000v3 router but I cannot get Game Spy or Red Ace Squadron to work. For Red Ace I need ports 6112 & 2113 to work TCP/WPD and for Game Spy I need ports:

6667 (IRC)
3783 (Voice Chat port)
27900 (Master Service UDP Heartbeat)
28900 (Master Service List Request)
29900 (GP Connection Manager)
29901 (GP Search Manager)
13139 (Custom UPD Pings)
6515 (Dplay UDP)
6500 (Query Port)

The online manual I downloaded does not explain how to configure ports for online gaming if you are not using a game console like Xbox, Playstation, etc.

Where can I find the information to set up these ports or configure them be it port forwarding or port triggering so the games will work and do what it is suppose to do? The connection is via Motorola SB5101 cable modem if that makes any difference.