Crysis Patch Problem?

Error reads=====

-Windows installer-

The upgrade patch cannot be installed by the windows Installer service because the program to be upgraded may be missing, or the upgrade patch may update a different version of the program. Verify that the program to be upgraded exists on your computer and that you have the correct upgrade patch.....

ok so i downloaded the patch into the crysis folder so its not missing. Also i have already downloaded and installed the patches 1.1 and 1.2 so i dunno what to do now :( please help me friends :)Crysis Patch Problem?
Don't use patch..Use original and licensed softwasre...Save the software companies...