Folks I just bought my first GPS of any kind. Have always used TomTom go on my Galaxy. However the phone is pretty hard to read while driving so I sprung for the Zumo. Here is my problem. I am riding from London to Vladivostok next summer and Garmin does not sell a Russia map. So I downloaded a Russia Img file which is supposed to work with the Zumo but have no idea how to get the thing from my computer to the GPS. Copy it to the micro SD using an adapter for the usb port? Download directly from the computer to the Zumo somehow? I also downloaded another full Russia map but it turned out to be a directory of separate img files that look like they need to be merged? Any help would be greatly appreciated!