How do I hook up this DVD player to my 60 inch Westinghouse model #VR-6090Z ?

If your DVD player has HDMI, use it. If not, you'll need to buy a cord for it. Look on the back of the TV and the back of the DVD player. There should be colored connectors on each one. On the TV, it will be an input. On the DVD player, it'll be an output. There will be either 3 connectors or 5 connectors on the TV and DVD player. You'll need a cord with either 3 connectors on each end (red, white, yellow), or one with 5 (red, white, blue, green, red). Once you figure out which cord you'll need, buy it from any store that sells TVs and hook it up. The link below has pictures
Video Connectors Tutorial Hardware Secrets