FAILURE TO INSTALL IN WHOLE OR PART OR UPDATES FAILING TO INSTALL = 

Caused by currently installed or previously installed adobe apps.

Solution; 

1, Go to the CLEAN INSTALL folder and follow the steps there.

NOTE = One of the updates in the CS4 torrents only installs on 32 or 64 bit 
       systems so 1 update will always show "already installed" or 
       "cant install".