It went fine on mine... I don't get it.. this maps/nav thing is really getting to me now. I'll check some things over again and look through the script soon as I can. Until then try either fix permissions in ROM manager or fix uid mismatches in recovery. It's probably something stupid that I did.
Deleting the data for the app fixed the problem in my case. It must have had some incompatible data left over from the other version that didn't play nicely with it.