I have just installed IE10. However i try to run video and it advises i need to update flash player. I go to adobe, update flash player and advised successfully installed. I try to run video again and get the same message. I uninstalled previous versions and reported. Still get same error message but installation always successful! I am using windows 7 on 32/64bit. system upto date. I had the same fault with IE 9 but i kept uninstalling and going back to IE8. However a little fed up with doing this.
I suspect you have Flash Player installed properly and something else is failing. When you go to this page, do you see the following?
What version is reported when you go to this page?