The software is provided "as is" without warranty of any kind. Gehle Software disclaims all warranties, expressed or implied, including but not limited to the implied warranties of merchantability and fitness for a particular purpose.
In no event shall Gehle Software be liable to you or your employees, agents, successors or assigns for special, indirect, incidental or consequential damages, including any lost profits or lost savings whether arising under contract, warrant, or tort (including negligence or strict liability) or any other theory of liability.
Download the file and use OpenUp.app to open the Setup application. Log in as root and start Setup.app. This will install two ChiantiText frameworks in your /Local/Library/Frameworks and Marlowe.app in your /Local/Applications.
Source code for Marlowe.app is available for free. Please send me a mail if you are interested in the source of Marlowe.