Double-clicking the downloaded file only installs the driver, so that your computer will recognise your satnav when you connect it (via USB).
You need to follow the instructions here, then open up the Route 66 software (which you should already have installed onto your computer). That will check that the satnav is properly connected and then take you the Route 66 store, where updates are available for download:
http://www.66.com/sta...on%20instructions.pdf
Chris



