Please follow the steps to make sure your Flash Player installation is successful.
a) First, verify that Flash Player is installed and working on your system.
Check the Flash Player Version Detection page, here (the link is case-sensitive): http://adobe.ly/wRILS
b) If you see the box with version information, you have successfully installed Flash Player and will be able to view Flash content via the Android browser.
Open the Browser
Hit the Menu Button
Choose Settings > Enable Plug-Ins and make sure that it's set to Always On
If the settings above did not match, this probably fixed the problem.
Please visit the Flash Player Version Detection Page (http://adobe.ly/wRILS ) again.
If you see the version information now, you're done! Congratulations.
d) If not, it sounds like the installation did not work correctly.
First uninstall Flash Player by doing the following:
Go to Settings > Applications > Manage Applications > Adobe Flash Player
Hit Uninstall (or Uninstall Updates) and follow the prompts
Restart your phone. This will make sure that anything that might be keeping the Flash Player binary locked is no longer running.
Once the phone comes back up, open the Market and search for "Flash Player". Follow the installation prompts.