OD_MIA,
To add to what was told you above, you also need to properly take the time and actually read the neccisary threads before posting an issue. Like this thread...
Read this before posting your problem!! **Updated 3/25/06** (
http://www.lucasforums.com/showthread.php?t=146050)
Also post about your issue in one place only you posted in the Problems running Kotor or TSL in Vista.... thread and then made a brand new thread about basically the same issue, it severely confuses an issue when you do this, and also serves to show people your impatience and impatience only serves to drive any who would help you away.
Lastly, you ask for simple step by step instructions, you might never get this, as you will need to know a little about computers to fix some issues. One thing I know from expirience is if you know very little about computers you ought to get someone who does to help you out, as you can do more damage than help if you try to mess with things yourself, especially with messing with device drivers.