Need Help Just Bought Samsung HT-AS720

Ok guys and gals. Just bought this today because it seemed highly recommended by many on this board. This is my first sound system ever. I recently got a Sony 52W3000 and figured might as well get a good sound system. Anywho, I am going to be hooking up my Xbox 360 with HD-DVD player. Also the sound out of the TV obviously. Is there a certain way to do this correctly, note that the Xbox 360 is going to be hooked up via HDMI. Please help I am a big noob when it comes to this.

Hey I did what you said and have no picture. My 360 video is hdmi. So anyway, I did what you said. I dont run my xbox through component its through hdmi. So I dont know what the issue is. I have no picture, or sound right now.

I talked to Samsung and she told me to run the hdmi cable to the tv, then get some audio cables red,white, and hook them to the TV and Reciever. She said I should then have surround sound. She told me the reciever was not meant to display hdmi?