Okay. I found out what the problem is. The CDRW drive that I have is a Philips 804. This drive won't work with Windows XP ~most~ of the time (I think maybe some people can make them work, depending on the PC configuration). However, just about everybody has the same trouble with these drives. I called Philips tech support, and they basically say that this drive wasn't designed to run in Win XP (even though it is a PnP device). According to them, it isn't their problem to make a driver to help the drive work in XP. That's Window's responsibiliby, and the suggest that you call Windows tech support to see if they can do anything.
But since this driver wasn't made with a guarantee to work with XP, I have a feeling Windows' techs will tell me the same thing (It isn't their responsibility). So basically, if you have one of these drives, and you want it to run in XP, you are screwed.
I had to order a new CDRW. It is the only option unless I want to go back to a different OS.