Sherri, did you have a publisher for your book, or is it self published?

If you have a publisher, the publisher should make sure the book is listed with Ingram's and Baker & Taylor (these are the main distributors for books)

I believe that Amazon reviews these distribution lists and pulls inventory from them for its catalog.

I know that there are ways to "Correct" information to a book listing once it is there, but I don't know about a single author putting the information there, unless you are part of the Amazon Advantage program.
http://www.amazon.com/exec/obidos/subst/partners/direct/step-by-step.html/103-3789269-6759862

However, I think that section is more for selling "used" books

well, now that I've thoroughly confused you, maybe someone else has more helpful information?