I didn't have luck with any of the files, and then I realized the activity light on the flash drive wasn't blinking. I tried a different flash drive with an activity light, and it also wouldn't blink. Then I remembered having this same problem a while back and reading about going through a usb hub first, then connecting the flash drive.
I connected a cheap $5 usb hub I picked up at microcenter and I finally got activity light going on the flash drive, so I reloaded the 4.23 reverter file onto the drive and did this...
PS3 CONSOLE> USB HUB> FLASH DRIVE> PS3> UPDATE> PS3UPDAT.PUP
Worked like a charm. Thanks guys! After getting ps3 out of demo mode, it updated to the newest OFW from the net and was back to normal with PSN access. Thanks again!