PC
1. Click on the link of the size wallpaper you want. A new window will open containing the image.
2. Right-click on the image and choose "Select as Wallpaper".

MACINTOSH
1. Control-Click on the link of wallpaper you want. Choose save image as (Netscape) or download image to disk (Internet Explorer).
2. Save to your Desktop.
3. Choose the Apple Menu > Control Panel > Appearance
4. Click the "Desktop" tab.
5. Click "Place Picture" and choose the file you just saved to load.
6. Choose the "Position automatically" option.
7. Click "Set Desktop".