You now load an avatar from your computer. Come up with a picture that's a .jpg or a .gif file, no bigger than 140 x 140 pixels and 70 KB, and put it on your desktop. Go to User CP > Edit Avatar. Click Custom Avatar. Use the Browse button to find the image on your desktop, hit Save Changes and there, you have an avatar.
Help from a guy living in the North Central Midwest (LaCrosse, Wisconsin).