1. Right click on the icon to the right and save it to your computer.
2. Open AIM
3. Click on "Edit"
4. Select "Settings"
5. Click the "Expressions" tab
6.  Click on the "Browse" link.  Select your icon.

Directions:  

1. Click on a thumbnail above.  

2. A new window with a larger image will appear.  

3. Right click on the picture and save it to your computer.

4. Set it as your wallpaper.