Install Java 1.5 on Snow Leopard using Pacifist

Download the official  Java 1.5 update 4 zip file from the Apple: Java 1.5 update 4
Open Java package (JavaForMacOSX10.5Update4.pkg file.) using Shareware utility called Pacifist ($20 per license)
After you have successfully opened the downloaded Java package:

• Using Finder application, navigate to
• HD -> System -> Library -> Frameworks -> Java.VMframework -> versions
• Select 1.5 and 1.5.0 versions and move them to Trash. Be sure to empty your trash.
• Using Pacifist, select 1.5, and 1.5.0, right-click and choose to install default location