I am currently using Ubuntu and refound this and installed it with the Ubuntu install manager thingie. How do I update it to be the latest version of the software? Sorry if this is such a newbie question, but I am a newbie with Ubuntu

The reason I asked is that I am having difficulty downloading the software.

other than more content what is the difference between the free version and the amazon version? What are the rights that the amazon content have?

I was wondering the same thing. Thanks for the link