I have mac Os X 10.4.11, and I am trying to apply the 10.5.6 software i got from the apple site, and they are requesting this.
Which Application should I apply it to. and If it didn't come standard on the computer, I don't have it. SO where can I get it if I don't have it?

Which Application should I apply it to. and If it didn't come standard on the computer, I don't have it. SO where can I get it if I don't have it?