Passcode doesn't work since upgrade to 5.0

Help,.
I upgraded my IPAD Original to v5.0. The IPAD doesn't recognize my passcode anymore. A keyboard appears instead of a numeric keypad. I hooked the IPAD up to my PC and chose "Restore from Backup" but it still doesn't work.

Any ideas are welcome. Am I hosed?

Thanks in advance,
Bob

Did you try pressing the key labeled .?123 in the lower left?