Just a bit of an update...the driver disk worked great (i686 wouldn't work...only i386). The installer was smart enough to add the line into the modules.conf, but not smart enough to copy the driver to the disk or make an initrd image. When the installation was done, I simply mounted the drive, copied the driver to /lib/modules/2.4.20-4.EL/kernel/drivers/scsi/ then ran "/sbin/mkinitrd /boot/initrd-2.4.20-4.EL 2.4.20-4.EL". I mounted the initrd image as described by SuperQ to make sure that the driver was in there, and it was. Rebooted and paydirt! Thank-you so much guys...I sifted through hours of garbage on the net trying to figure this out, and got the answers within a matter of minutes here.
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~ John