renderHistory 0.0.1 for Maya (maya script)

Hi There, i know that this script is marked as for windows and maya 2011 only - but in my experience that should hardly be the reason. I get an error message: "Error Code 50: no previous data file found. Create new one." It would be very gentle if you supply your script in source code, like most people here. In the end this is the base of the this community and allows everyone to put hands on and to potentially complement on another. Thanks Felix