Hello,
Unfortunately, when I contacted them to ask them about the source code I was told that they do not have it.
Unless the Dropbox link is available again I'm not sure I will be able to continue this project.
Here are some options:
1. Release the project as is: Although the project is very incomplete and probably has issues and things that vary from the original, I can release it if you like.
2. Wait for my next project: Currently I'm working on a project where you take a list of words, and the computer picks a word randomly that you have to spell. The number of words it picks is determined by how many are in the file. The words are randomly chosen from the file, and as you progress, the amount of time you have to think of and spell the word is less, making you have to think quicker, and type it more quickly, something I've been really addicted to as I test it and watch it come together. This would be my first project in BGT and man, it's been fun.
Thanks,
Brandon