If you don't see that stuff then you are probably just using the radeon video driver and not the catalyst control software. You need to install the catalyst control software to enable TV out. Download the latest radeon drivers. Do all the updates in order (even .net frameworks) ATI Drivers
When you are done that it is pretty straight forward. It will auto detect you have a tv hooked up and you can see the options by right clicking the desktop and click properties then the settings tab then the advanced button (lower right of small window) and then you will see all the ATI settings tabs.
Edit - Reworded a bit.