Follow the steps below to set your Mac OS X Background Image (Wallpaper)
Using the Quick Click Image
You can quickly set your Desktop Wallpaper / Background using the Quick Click image on the web page.
All you have to do is <CTRL> + click (single button mouse) or RIGHT mouse button click (two button mouse) on the appropriate image (choose your aspect ratio and resolution). A popup menu will appear. Select "Set as Background" and the picture will be downloaded to your computer and will be set as your background.
Using the Download Link
Using the download link can provide more control for you over how your computer is setup. Choose the appropriate image (aspect ratio and resolution) and download the picture. Place the Picture in your Pictures Folder in your home directory. One way to download the picture is to <CTRL> + Click (or Right Click) on the picture and select "Save Link As" (Firefox) or "Save Linked File As" (Safari), or if you simply Click the link the picture will be displayed and you can <CTRL> + Click / Right Click the picture and select "Save Image As". Typically you would save the image to your "Pictures" folder. From your Mac desktop, either <CTRL> + Click or Right Click and select "Change Desktop Background". Choose the downloaded image.
Related HOWTOs:
List of Mac OS X HowTo Guides
HowTo Change your Screen Saver in OS X
HowTo Set your Mac OS X Screen Saver to display your Flickr Photostream


