Many thanks for the help, Wuff. I think I have it sorted now.
And Carolyn, I'm very new to publishing with Amazon Kindle, and at the moment its only available on Kindle. The next stage is to make all corrections and get it published as a paperback with Amazon. I've used Kindle Direct Publishing, and because I've registered with them, it is now restricted to the Kindle for the next 90 days. By that time, I hope to have the 2nd book in the series ready. Eventually it will be on the Kobo and other systems, but in the meantime if you can download it to your computer I do hope you enjoy it.
While I'm on, I thought I'd tell you that there have been 111 downloads of the free book this past weekend. I don't know if that's good or not, but it feels good to me.