I have Windows Vista and I've tried everything in the book to get Adobe Flash Player to work on my computer. I finally got it to work by following these steps:
Open your Internet brower and select:
1) Tools >
2) Internet Options >
3) Programs >
4) Manage Add-ons >
5) Make sure that your "Shockwave Flash Object" is set on "Enable"
I hope this works for you too!