I do believe I did everything correctly. I burned the CDs as images in Nero (didn't extract then burn), and I used the resulting disk 1 to create the boot disk using rawritewin.exe as per Andy's instructions.

One last thing: during the bootup, it goes through the various SCSI boot processes. There appears to be a problem. It keeps saying "SCSI BIOS Not installed!" This is odd since I can see it going through each SCSI controller and seeing what is connected to it. I think there's only two: one onboard for the CDROM and one card for the hard disk array.