I’ve just downloaded the ScriptFrenzy version of Scriverner in order to use the page count feature.
Unforntuately, I now can’t use the corkboard or the outliner. There is simply no data showing. 
Any ideas?
What happens when you click in the Corkboard area and press Cmd-N? If you get an index card, then you are just looking at an empty item in the Binder. Try moving up a level in the hierarchy.
Try going through the interactive tutorial (Help > Tutorial) and viewing the introductory video here:
It sounds as though you are switching to outline or corkboard mode for a single item. The corkboard and outliner show the subdocuments of the selected document, and all documents are capable of holding subdocuments. So if you switch to corkboard mode when a document with no subdocuments has the focus, they will be empty. It’s definitely worth investing the time in the tutorial, as there is a slight learning curve, but when it “clicks” it should make sense. The parts that don’t make sense are being refined for 2.0. 
Thanks for trying!
All the best,
Keith
Got it!
I had changed my preferences in the navigation setting a few days ago and had missed the bit about using opt to open folders normally.
Have now gone back to the default. Thanks for help. 