Step-by-step: How to Create mosaic:
1 - Menu - File - Open Library...(If the Library is already open - you may omit this step). 2 - Menu - File - Open Background Image... Find an image you want to mosaic and open it.
4 - When you will see your image with layers in the main program screen press Render All button.
5 - When image will be mosaiced select from Menu - File - Save - project. This will save rendered Photo Jumble project.