DVI and VGA will not give you any audio, it is for video only. It is no different than the connection between your computer and your display - no audio is transmitted over that link, only video from your graphics card. You will need to deal with audio seperately.
This *will* work, however if your TV has a VGA input (DSub-15) I think that would give you better quality than going through s-video or composite, which is what the above adaptor would accomplish.
Instead, perhaps you might want to consider this adaptor? And if you do, no need to buy it, as it should have been included with your MacBook Pro when it shipped. (I assume this is the one you already tried?)
If you were planning on using the first adaptor, then yes, these would be the right cables to use for the s-video component, however all you really need is the s-video cable, not the audio cables that appear to come bundled with it. Again, audio is seperate from video. Even if you buy one of the above s-video solutions, you will still need to plug the other ends of the audio cables into something, and your MacBook Pro does not have the proper interfaces for this. I believe your MacBook Pro has a combined optical digital output/headphone out accomplished via a minijack. So even after you sort out your video you'd need to sort out your audio.
Thank you for your help, I really appreciate it
I'm going to go the VGA route, use the adaptor (DVI to VGA) that my MacBook Pro came with
Now, for the audio... what do i use?