I wasn't specific about the type of drive I have purchased and installed. It is a Western Digital Ultra ATA/66. My copy of Linux is Linux-Mandrake 6.5. It will not mount on my new drive. I've been told that I should wait for a later kernel version, perhaps 2.34 or later. One that will recognize the controller on this new drive.
Don't know if this info changes the suggestions you made initially, but if so, please let me know.
Also, since hearing some scarry stories about Mandrake, I'd appreciate the address for mirror sites where I can download Red Hat.