The source code for this project is available now through SourceForge. The directions below are accurate when this was written, but in case any locations have changed, see further instructions on accessing the code in the repository at the SourceForge site http://sourceforge.net/projects/mountainmeadow/
Make a top level folder called MountainMeadow3 to ensure compatibility (e.g. c:\MountainMeadow3 is the local folder for the code on your computer). Then "SVN checkout" the code into that folder:
Use a SVN client such as TortoiseSVN (not a web browser!) to connect to the repository with the connection string:
https://mountainmeadow.svn.sourceforge.net/svnroot/mountainmeadow
Read the README.txt file (e.g. c:\MountainMeadow3\README.txt) to get started, and enjoy the project!