I'm not very satisfied, I have two big problems...
1) Most of my books are not found on Amazon.fr. Only on book found with ISDN, thus I suppose all my settings are fine. I must register my other books manually.
2) Not enough classes and ID used in the code. It's a problem to control the design of the widget and pages. For example, in the widget, the link "View full library" has no id, and has tags
and <b> : bad practise... And this codes are in a DIV without or class.