Unfortunately the manufacturer doesn't provide the driver on its website. I also asked a friend to copy the contents of the CD that came with the hardware onto his website, but even after downloading that the DVD drive doesn't work.
I deleted the driver that was installed when I plugged in the DVD drive and then tried to reinstall it again, but a message came up that said the setup was incomplete and that there was the possibility that there was something wrong with the hardware. Thinking that the DVD drive was a dud, I took it back to the store I bought it from. Unfortunately for me though, the DVD drive works fine because the guy at the store was able to hook it up to his computer. When I explained to him that my internal DVD/CD drive no longer works, he said that that might be the problem. His suggestion was to reboot the computer, although if I do that, I'll be in trouble because I won't be able to use the recovery CD when rebooting.
This is such a silly annoying problem, and it seems like it should be an easy fix. Does anyone have any other ideas? Incidently, I really appreciate all the thinking that Alan has done for me