Your post is far too unwieldy. Try this next time and try to make a better post that doesn't have me paging down and down and down and down and down...
http://www.google.com/search?q=install%20directx9%20vista may be your answer but the issue I have with your posts is that you need to make a good one.
Do you know what an OLED TV is?
CNET explains how OLED technology differs from regular TVs, and what you need to know to make the right shopping decision.