I will post a Moviewriter 3.0 walkthrough as another load of changes have been done to the suite.
The apps home page now looks like this:

There are 3 new analytical script lenses: Character, Plot and Roles.
The Storyboarder app has been retired as the tinking is that this app is more appropriate for the Moviemake suite.
But images can now be linked to a plan in order to create a previsualization (PreViz) of a world of People, Places and Things.