Ok I tried it again, with no luck.
I have the power cord and video cord plugged into the 360. I have my orig.bin in c:\iprep. I'm using NTFS DOS to boot into my PC. I power both the PC and 360 on at the same time. I enter NTFS DOS, go into c:\iprep. I plug in my SATA cable. I enter the mtkflash w /m /sata orig.bin command. My 2 CD/DVD drives are listed, along with my 360. I power down the 360, enter #3. Count to 5, power the 360 back on and see the 4 banks complete their flash to 100%. I receive the success messages. Remove the SATA from the 360, power the 360 down and reboot the PC.
Still no luck restoring the original firmware, or having a hacked flash enable me to play/read burned or original games. I can still however read/watch DVDs.
I'm at a loss, I'm following directions to the T for what I can tell and getting nowhere fast.