newbie questions:iauthor

Hello,

I am creating a digital books of family stories, The idea is that once produced that other family members can contribute via me.

I hope someone can answer these questions:

1. Once produced, can only those people that I permit, see the book online and will it appear as a book or thumbnail page as a work in progress?

The book would only be of interest to a small group and can it not be accessible only to them?

2. If that small group wants to download the book as an ebook, can they?

3. Can this small group publish the book in hardcover form via Apple.com (like books in iPhoto)?

4. Is is easy for someone to add a story in the future by sending it to me and having me alter the ebook?

Thanks in advance,

GJ