Hello, I am so glad i found this site coz i really need help. i was given a Nuvi 57 with regional US maps (2020.30) but I am in Canada. Can you please provide me with instructions for how to install 2020.30 North American maps so I can use both in Canada and US. questions: 1) I plugged my Nuvi 57 into the computer but I can't find .System so how can I put the Garmin folder in .System 2) can i still keep the current regional US maps? Where can I get the North American 2020.30 maps and where do I put the maps on a microsd? which size is 2GB big enough for NA maps? thank you in advance. kd PS This is my .xml file <Model> <PartNumber> 006-B2087-00 </PartNumber> <SoftwareVersion> 460 </SoftwareVersion> <Description> number 57 </Description> </Model> <Id> 3922506428 </Id>