I have a Powerbook G4 Mac OS X version 10.5.8 with a 1.5GHz powerPC G4 processor with 1.25 GB of memory. I have tried many different ways of installing a flash player that I have found from forums. All have failed or maybe I did not do it right. Please help me with this problem, Thankyou.
The file you downloaded should be a .zip file, which you've most liekly unzipped already. (If not, it's here: Flash Player 10.1.102.64 and 9.0.289.0 )
Inside that should be a few folders. One is named "10_1r102_64".
Inside that folder is a flashplayer_10_1r102_64_ub_mac.dmg
Double click that and it will mount on your desktop, and open a window with the installer.
Right click the installer and choose "Show Package Contents"
Go to: Contents/Resources and double click the Adobe Flash Player.pkg file
The installer will open, ask for your Admin password, and it will install.