I would check out the Author Services with question pertaining to web site questions and what not. As for posting a chapter of your book in the Mother Writers group, I will ask the group creator. I do know some moms on here are willing to comment on other peoples work via back channeling. (I'm one of them ;). Congratulations on your book contract! I can't imagine how exciting it must be, but I look forward to seeing your work once you get it out there!
kelli

Welcome to Mother Writer,Julie. I apologize for the belated message. I see you've already jumped in on the forums, but if you have any questions feel free to ask. We look forward to hearing more from you and again,welcome to Mother Writer.
take care,
kelli rodin
(admin)

You'll definitely find moral support in the memoir group. And the memoir sounds fascinating.

Meg