What steps would I take to re-install Adobe Flash Player 9 in my Ubuntu 8.04 32-bit OS? Would this be the best version, or is there a newer, better one which is compatible?

I originally had a version of Flash Player 9 installed in my system and was trying to upgrade to Adobe's latest version (which is 11.2) I believe, but found out that I couldn't do so since my system/computer doesn't meet the requirements.

I have tried and tried to install Version 11.2, but to no avail... During the process, I was successful in removing Version 9 from the repository, but in the final step, it was not recognizing the package.

Hence what would be the correct steps to follow in order to get my system back up and running with Flash Player???

Any legit help would be much appreciated! Thanks!