Does anything show up at all? Have you tried booting using a floppy and then using SysInfo (or early startup control, depending on your KS ROM) to "see" if the SCSI card is recognised and then (assuming it is) using HDToolbox to prep and format your hard drive?
Also, assuming the SCSI card is device 0, make sure that the jumpers on the hard drive are set for device 1-7 (and that it is indeed a SCSI drive and not IDE).