I borrowed a friends gps today to play around with gpsapp. I got it installed and working correctly but am having trouble with the routes. I've got the raw route description saved as a text file but the next step says to run the python script 'parse_mapsonus.py'. What exactly does this mean. I know I need to do this to convert the route description into a form that gpsapp can understand. Can someone please give me better directions than just run the script?