Enabling Ports on Linksys 54g Wireless Router

I wanted to use the webcam program, IspQ, and I can't receive video from others on their webcam. Their site says if you have a router and are sharing an internet connection, I need to enable ports 2000-2003.

Is anyone able to give me detailed instructions on how to do that?

Thanks!

 

Oddly enough the Linksys router user manuals will detail what you need to do!
You don't say which router but, for example, the WRT54G user manual ("linksys-wrt54gv1.1_ug.pdf") has a section entitled "The Applications and Gaming Tab - Port Range Forward" complete with screen dumps describing exactly how to do it.