The key should have come with a CD, so there is no need to download it.
The key is adhered to the side of my computer when I purchased it. Windows XP Home Edition was pre-installed and has now crashed, the recovery disks that were made when we purchased the computer are not booting up the system so I need installation disks/software to reinstall my OS.
Where can I find the software to download, I have the key and no the key did not come with a CD?