I have written a small app with the help of MusicMan247 that will simplify changing icons and apps for your S3 Cube.
This is very similar to the original Cube Editor.
First Download S3 Cube Edit at the bottom of the post, Unzip, and move the .CAB file to your phone. Run it and it will install.
Once installed you will find it in your programs folder.
When you open it you will see a screen like this:
What you need to do is from the dropdown box at the top, click a side you want to edit. If you downloaded the 4 sided S3 cube Side 3 is the blank side. if you downloaded the 3 sided S3 cube, you will nto need to use side 3.
Once you choose the side, click on what box you want to edit and it will bring you to this screen:
From here you will need to change the paths of the application, icon path, and icon press path.
Hit Save, repeat for all the boxes and one your done hit File and Exit.
Make sure to do a soft reset!!!