There are instructions under the Help button. See my video on this project: https://www.youtube.com/watch?v=pjknZnRHPg0 Check out my studio of Software made with Scratch:
All the graphics are by me. The loading bar is by [No links?????!?] The introduction voice is by this amazing text to speech website: [Darn! Can't put links] The Windows startup sound is curtesy of the old PC in my garage that I used before I got my Mac Book Air. I'm not sure if Scratch allows me to insert link.