Yes, we Mac users can also put the Civ III wallpaper on our desktop. Here's how:
1) Load the wallpaper image in your browser ( This week's can be found at
http://www.civ3.com/images/themes/ir..._prop_1024.jpg ).
2) Click on the picture and hold the mouse down until you see a little menu pop up.
3) Select "Download image to disk" or whatever it is in your browser.
4) Save it to your disk.
5) Open the "Appearance" or "Desktop Pictures" control panel (depends on your OS version, Appearance for MacOS 9 and Desktop Pictures for Mac OS 8).
6) Click "Remove Picture" if you already have a picture on your desktop.
7) Click "Select Picture..." and choose the downloaded image and...
Voilà! Your Civ III wallpaper is on your desktop.