How does this module work?

I am sorry... I have read everything on the web site and looked at the demos and I still don't understand how this works.

How do we get the questions and answers in to the module?

How does the module create a crossword from the answer words you give it...? It might be that a crossword cannot be built from the words you supply.

The documentation is non-existent unfortunately.

I don't want to buy this product until I understand it... a demo version to download for free would be very useful.