Sounds like a typical set of driver problems, to begin with, then a hard drive problem. What was the reason you upgraded? Was it not working correctly with the set already installed?
It is likely that the hard drive is bad. If not, it is certainly corrupted badly.
I would try to reformat the drive using a floppy disk (if that computer has a floppy drive) and F Disk the drive to delete and restore the partition, then reboot and reformat the drive as Fat 32. If that works, run the Toshiba recovery set once more. If it doesn't work, download from the hard drive manufacturers web site their drive fitness test that can be run from a floppy or a flash drive. If good, run their drive setup software. Then run the Toshiba recovery set once more.