Where do i plug my direct line into the router?

[AsianSensation]

I I have been using a router a friend set up, for my PS3 and labtop. They worked perfectly fine until i unplugged my cable/cords from the router. Do I plug the direct line to WAN? Help please! Says ethernet cord not detected.

 

[riser]

Line from cable modem goes into router's WAN port. Everything else goes out the number ports to your devices.

Hey, you ain't no asian sensation.