After clicking on one of the links below, a large JPEG version
will appear. Then ...
Windows users: Right-click the graphic you want to set as your wallpaper. From the pop-up menu that appears, choose "Set as Desktop Background". View your desktop to see the graphic displayed.
Mac OS X users: Right-click the graphic you want to
set as your wallpaper. From the pop-up menu that appears, choose
"Save/Download Image As..." and save the image onto your computer.
Open up your System Preferences (usually from the Dock) and
select "Desktop". Locate the file you just saved and drag it
directly onto the mini-desktop in the preference pane you just
opened. View your desktop to see the graphic displayed.