Instructions
Windows: Click on the image to load the wallpaper. When the large image finishes loading into your browser, click the right mouse button on the image. Select "Set As Wallpaper" from the pop-up menu that appears. You're all done!

Macintosh: Click on the image to load the wallpaper. When the large image finishes loading into your browser, click on the image and hold down the button. When you see the pop-up menu appear, select "Save This Image As" (Netscape) or "Download Image to Disk" (Internet Explorer) and save the picture to the desktop. When you're finished saving, follow the appropriate directions below:

Mac System 8 and 9 Users ...
Open the "Appearance" control panel from your computer's Apple menu. Click the "Desktop" tab in the control panel. Click the "Place Picture ..." button. (If you already have a picture you are using as a desktop, this button will be labeled "Remove Picture." Click it twice.) Choose your new picture, and then click "Set Desktop." You're all done!