PC WALLPAPER INSTRUCTIONS:
RIGHT-CLICK AND HIT "SAVE PICTURE AS" OR RIGHT CLICK ON THE IMAGE AND CHOOSE "SET AS WALLPAPER."
MAC (OS X) WALLPAPER INSTRUCTIONS:
DRAG THE IMAGE ON TO YOUR DESKTOP.
GO TO APPLE MENU > SYSTEM PREFERENCES > PERSONAL SECTION AND SELECT "DESKTOP."
ON THE "COLLECTION" PULLDOWN MENU, GO TO "CHOOSE FOLDER" AND LOCATE THE APPROPRIATE WALLPAPER.