thats where you are going wrong .
boot up your system first,
then install the scsi squirell software.
after the install, go to dev/drivers and see if it has put CD0 in there, if not, go to storage/dev/drivers and copy it to dev/drivers drawer, rename CD0 to CD2, from the pull down menu info, edit the tooltypes UNIT=2, double click the CD2 icon to mount it, reboot.