Try it without hdc=ide-scsi in grub. If that does not work for you, try hdc=ide-cd in the grub.conf file for the kernel.
You are right, upgrading from FC1 to FC2T3 does break CDROMS (2.4 kernel parameters different than the 2.6 kernel parameters.)
My clean install adds this to my grub.conf file.
title Fedora Core (2.6.5-1.356) root (hd1,4) kernel /vmlinuz-2.6.5-1.356 ro root=LABEL=/1 rhgb quiet initrd /initrd-2.6.5-1.356.img
The FC1 to FC2T3 upgrade left hdc=ide-scsi in grub.conf and did not work.