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No! 100% free. You need to have a bank account in one of the "approved" countries so they can pay you. The place to look on amazon is "Author Central." Another place to look is createspace. They are good with the formatting and then you upload to amazon.

Oooh wait do you need a pc to do it? It is on amazon.com right? XD

Yes, Amazon.com. You need to get your work into one of the formats they support. All of my books are text only, so I don't know the exact directions for you. But I know you can find help on the site as well as "How To's" by other graphics people.