If you upgraded to 8 then you would have been provided a key.
The original Vista installation would have included a tool to create recovery disks. Manufacturers do provide recovery disks at a cost but with the age of Vista may not be available.
Drivers can be downloaded from the manufacturer but apart from network drivers any other could be managed by Windows Update. If network is supported by Windows then it should work. Vista drivers would be of little use for Windows 8 but inbuilt support in Windows 8 is quite good.
Too late now but backups should always be a two stage process, do the backup then check that the recovery will work. Most recovery disk creators (above) are extremely slow because having written the disk it verifies each one.
Thanks for the Info.Now I know which way to deal with this.VLanza