Instructions For Using Your Free Desktop Wallpaper
PC Wallpaper Instructions:
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 > Desktop & Screen Saver >
On the "Collection" pulldown menu, go to "Choose Folder" and locate the appropriate wallpaper.