I decided to just try all of these and give my experience with it since I have my book on http://www.phonesexcareer.com and I want to get it to a bigger audience.
1. contact name
2. contact e-mail.
3. number of e-book titles.
4. ebook category- I put self employment.
5. metadata format.-
6. ebook format- mine is a PDF
8. additional information: I would love more information. My book is all ready to go and I would love to learn more. I am currently driving organic traffic and selling the book there. I would like to have it in more locations.