When I click on the download button I get this:
Downloading Rack Extensions
Rack Extensions are downloaded by the Authorizer helper application. This is installed when you run Reason 6.5 (or Reason Essentials 1.5) for the first time.
Have you done this?
I click on the button that says, "Yes, proceed with download!". Then all I get is the same page that shows my accounts rack extensions... baffled