[Q] Motorola Xoom OS issue topic

I have a Motorola Xoom MZ601. I really do not know much about it, but I assume that it has been loaded with a different OS. When I boot into the Android recovery mode it does not come up with the little robot. It says that the build is "Panthr XOOM Recovery v2.4-TA", "Theodore Tribute Edition"

I have formatted the device and tried the flash update.zip options. When going through the flash update, it does not recognize the zip file signature and aborts.

Any ideas?