My gaming computer is behind an ICS so i need to manually open the port using a program. Can someone please help me out.

**** this is irritating, i suppose i'd make a little too much sense for EA to write as a requirement on the box for internet play that PORT XXXX needs to be available.

Listen, have one guy start hosting and then run a port scan on him. Usually games use UDP ports so you can ignore any TCP ones i believe.