I'm not sure what you mean by "ghosted"--to which process or property sheet are you referring? Device Manager lets you change SCSI communication options for some devices (scanners, printers, CD-ROM drives, etc.), but otherwise, it's just for show.
Does FDISK recognize the drive?
EDIT: Are you sure the drive is single-ended? It could be differential (HVD), which is the "other" SCSI bus signaling method, mostly intended for reliability and long cable runs. However, low-voltage differential (LVD--Ultra2, Ultra320, etc.) should work fine on a single-ended bus. Given that the drive was sold by Compaq, it's probably not HVD if was intended for use in a ProLiant server.
Trev