modify existing flash flip book

I need to modify and existing flash flip book viewer (player). I have the source file. Modification would be to create the flash flip book viewer from flipping the pages over like a book; to appearing to tearing off each page from the top of the pages below. I would also need to center the pages in the viewer space since the pages will not be flipping. To go back (replace) the previous page the navigational button may be used (just like it does now "go forward arrow and go back arrow) I will need to keep all of the current feature and controls "xml" working.