How to install Flash 8 or higher?

[Jayhawker]

Please, now and then there are sites that ask me to install Flash 8 or higher. When I agree, an adobe Flash Player dowloading page pops up. Problem is when clicking what is downloaded finally: a folder that when opening simply shows a couple of files, one of them with "install" word. When clicking, no installer program activates. I suppose I have to use a Terminal. Please, could you say to me what must I to write in this Terminal in order to execute the files? If I am asked as a root, please, could you say to me how to go on with this frequent and nagging barrier?

Thanks a lot and waiting help.

[Pumalite]

This might help:
http://ubuntuforums.org/showthread.php?t=853971&highlight=flash+v10
http://ubuntuforums.org/showthread.php?p=4928900
http://ubuntuforums.org/showthread.php?t=856813

[Jayhawker]

This might help:
http://ubuntuforums.org/showthread.php?t=853971&highlight=flash+v10
http://ubuntuforums.org/showthread.php?p=4928900
http://ubuntuforums.org/showthread.php?t=856813

Thanks a lot