OK, I downloaded the locked and unlocked img files. Could someone please direct me to a usefull description on how to install the img files on my Garmin Oregon. (preferable via MapSource since I'm familiar with that) In the past I've always used the country maps installers to install the country maps on my PC and used MapSource to transfer the selection of maps to my GPS device. I'm sorry for asking such a noob question but I couldn't immediately find a usefull guide. I'm sure it is here somewhere but I'm a bit overwhelmed by all the information. Thanks in advance for the guidance...