I downloaded the Installer and my default version of Stuffit kicked in, but kept coming up with an error message (#-43) saying that a file could not be found - namely, the application (although the Read Me document was fine). I checked and discovered I still have Stuffit 7.x installed, so I updated Stuffit to 10.x, and now the message is gone, the application is there, problem solved. I don't know if Stuffit 8.x or 9.x would have the same problem, but worth making sure you have the latest version installed anyway. So - it isn't a problem with the Installer file.