Greetings one and all. My daughter gave a TomTom One to me for fathers day and I'm attempting to figure out what version it is. I've read the responses that say the serial number is the key but my S/N doesn't fit into what I've found so far. My S/N PB4358F03948\r\n\r\nI'm also seeking assistance in figuring out how to change my position marker from an arrow to a car. \r\n\r\nI want to be able to save the current location (not home location) without entering an address. Is that possible with a TomTom One? My lady friend's Garmin has a feature that allows you to save the current location and name it.\r\n\r\nAny help appreciated.