I used Word 2003. Page size 8 1/2 by 11. 1 inch margins all around.
It was the same size as the text pages.
Use JPEG and insert into the document after a page or section break and do the break after you insert.
The images will resize to the page in Word.
The full screen image size is 600 x 1024 px. However, it all depends on how you format. If you use Adobe InDesign CS6 there is a page size for the Kindle Fire. The only way the book will fill the full screen (even if you use those dimensions) is if it is programmed as a KF8 fixed-layout book.
DM me if you want more information.
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