Windows: Right click on the image, then select "Set as Wallpaper or Background" You can fine-tune your wallpaper settings in the Display Control Panel.
MacIntosh System 8 and 9: Click and hold the mouse button on the image. Pull down menu to "Download Image to Disk." Save the image down the path of: Your Hard Drive, System folder, Appearance, Desktop Pictures, and Photos. Go to "Appearance" under the control panels and set the image as your background.
Mac OSX: Right click on the image and save it to your harddrive. Follow this path: System Preferences>Personal>Desktop & Screensaver>Desktop>choose folder where you saved the image. All photographs © Copyright Coastal Living magazine.