If prompted for a yes or no, type "y" and hit enter.
Right click on the date at the top-right of the screen, just subtract a year, and hit save. if it says something to the effect of "security certificate not valid", you need to move the date back. WARNING: If you try to install the update package and get "An unknown error", hit ALT - L and take a look at the Installer Log.
Type in all the information that you wish (except user account, that's kind of mandatory, I never register or fill out the registration info.) Once you reboot, you should have a working system. (Moves one directory backwards, so your working directory should be "/Volumes/System/Library")
(Deletes Sleepenabler.kext, if you don't do this you may get a kernel panic, if you do, just repeat the process of booting into single user mode, and delete the kext) (Deletes all kexts that start with "AppleIntel") (Changes current working directory to "/Volumes/System/Library/Extensions") (Grants you write privileges to the directory "/Volumes") ( Mounts the installation partition to a directory called "Volumes" in the root of the DVD.) MAKE SURE THAT YOU DOUBLE CHECK YOUR SPELLING AND TYPING WHILE IN SINGLE USER MODE. You are now in what's called single user mode.
If you have a Windows machine, you can simply download the binary and install it as you would any other application.(If you know anything about women, you know that I am saying this to save you a lot of grief. She deserves it for putting up with a guy who shuts himself in his room to tinker with computers all day. Set these things to download, and go grab a cup of coffee.
The directions on this page are variations taken from the following webpage: