You can always contact the author of the hack to ask if they have the script up on a 3rd party site to download, or ask for an e-mail of the script in what ever version you need. Most people that make something have a master copy of the program stored away somewhere.
As far as a backup of data, I use redundant hard drives.
- 1 TB of data on two different 2 TB drives.
One drive I use and one sits on a desk with latest backup.
The drive I had go bad was the one which stored all my backups, we are talking 400+GB of stuff in general. Eventually it went from backup only to just a sort of backup drive where I stored anything.
The real problem is that it went bad in the matter of a single reboot. It was working fine, then reboot the computer and that was it, no warnings, no SMART errors nothing, just dead.
I've just recovered data from a 500gb hard drive for a friend to an extarnal drive, their drive had crashed, they even formatted and reloaded windows, i used Power Data recovery and ripped every file and folder of the hard drive to the external, they recovered all their photo's, files...etc so were very happy