Dr. Scenario has not made an official release yet, but its source code is available in the Subversion repository. Last November, SourceForge made a change in the Subversion access method that makes the repository more reliably accessible. If you started using the repository before November 31, 2006, please see this article on how to update your working copy: https://www.sourceforge.net/docs/E09#notice . This will keep your copy more up-to-date with the latest from Dr. Scenario!