I had issues using Tortoise, SVN. For those of you who use GitHub, or any git distributed version control, I have posted source of the plugin example so you can easily clone it to your machines. You can use git or https (zip, or tarball). Versioning begins at rev 8320.
Run git clone on
git://github.com/40/OpenDental-Plugin-Sample.git
Or download via HTTP
https://github.com/40/OpenDental-Plugin-Sample