How to "Visualize" XML in Flash CS4

Hi, that’s the jist of my last project in my college class. I load an external XML file with about 10 books from O’Reilly’s Safari group. I can get the elements of the XML into an array, such as the ISBN number, etc. But I need (or I envision this) a button on stage that will allow me to display the first item, then the second, etc. Any thoughts on this? Thanks