Thank you, Gordon and David - (Gordon, I followed the link to your website - very impressed). I see now that the point of the E-store sales is for writers who have their own websites to create the link. This isn't really very useful to me at present (as I don't have a website) but I'm glad I now understand the options for future reference. Thanks, Philip, this thread has been very helpful to me as I've been just one step ahead of you with the CS adventrue and pretty much in the dark most of the time. I look forward to seeing your book up soon. Best of luck with your proof.