I have a 4 Port Wireless N Linksys Router and 2 Wireless G Access Point How it Setup Please Help Me?

If these are "real" access points only, you simply run an ethernet cable from the router to the location you want, and plug the access point into the cable. You configure the access point based on whatever Ip address it gets from the router, or you hard code that first, before connecting....|||You really don't want to use the G Access points. That forces the N router to operate only as a G router. Get two N access points. The simplest installation, once you have the N router set up, is to run an ethernet wire to each of the N Access points. They will set themselves up automatically.