Hi, you have the software, it's inside the PantherSoftware CD that came with your machine, the folder is named Panther Downloader, and inside you will find an application that loads the system to the hard drive, you just need to boot as autoload from SCSI option. In the case your booting hard drive is damaged, swap it with the other hard drive and just make the download (it must be in SCSI 0) then you are going to boot from the "second" hard drive. If the first had drive is still usable you could leave it, if not, you need to find another one and, very important, format it in the panther. Due Panther speed specs not all discs work fine, even if they are working good on an PC, so maybe you need to try with more than one drive.