Ok your plugs are in the correct places on both devices. (I wanted to make sure they were right)
I see that your TV has a S-Cable connection as well as the DVD player. The simplest way is to buy a Super S-Cable and use it for a direct connection between the 2 in the future.
Now tell me the model number of the DVD player.
You're plugged into Video 1. You're going to have to figure out how to get to Video 1 on your TV. Think of it like FM/AM bands on a radio. You watch TV on the FM band. You have to switch to the AM band to watch DVDs. There will be a button on the controller to do this. It will probably be called Video or Input. If that fails, look for any buttons on the front of the TV. One of them should switch "bands" for you.
Once you get this sorted out, ask at Best Buy for a "component cable." It will go in the green/blue/red slot and will give you a better picture.