Thank you Eric.
So, to change the firmware, I just use the "Delta Tau | Update Firmware" menu item, and provide the powerpmac_smp.deb file from the 2.0.2.14-465.zip (my "cpu" is PowerPC,APM86xxx) archive?
I did not see the 2.5.0.4 firmware version, on my newer Pmac card, on the FileDepot. Is that available somewhere else? Or, is a "Backup" of "PowerPMAC Firmware, Project, System Parameters, Network Settings and Kernel Partition" sufficient to restore the Pmac card to the current 2.5.0.4? I will want to swap firmware versions back and forth, for testing.
Thanks