[Musicman247]

Just a tip for those who want to use the blank 4th side for programs there are no icons for yet:

in the Registry in APLauncher3>App#

In the String Value "Name" you can put any text you would like in it. It will then show up in the box without a picture for the button.
Then just put the Program's path in "Path".
Soft reset and viola! You have text buttons instead of pictures on the last side.