On the Geocaching.com website, some caches have photo files as part of the clues. The photo file is a separate file. Below are the instructions on how to download the files to your GPS.
1. Connect GPS to PC and the name of the GPS will appear once it has been read by the PC
2. Open up the photo file from Geocaching.com
3. 'Right Click' on the photo and 'save image as'
4. When the window appears, find the name of the GPS>double click>Garmin folder appears>double click>a list of folders
appear amongst which is a JPEG folder
5. Save the image to the JPEG folder
6. Disconnect the GPS and check that the images that you have saved are in the 'Photo Viewer'