Hello, I have a Mazda CX-9 with the TomTom NB1 in-car dashboard navigation system. I just purchased the updated US/Canada map set + Safety Camera updates, order number 409775669. However I cannot see any way to use TomTom Home to load these onto my SD Card (which *is* recognized and I've updated and backed up for other content). What am I doing wrong? Also, TomTom Home shows me all prices in UK pounds. How do I change it to US dollars?