Flash 8 Sliding Menu

I’ve gone through the information found at http://www.kirupa.com/developer/flash8/slidingMenu.htm to implement this great sliding menu. I want to modify the code so that I no longer have individual buttons for each screen. I need next and back buttons to cycle through the screens instead. I’ve found some information on the forums- but it all seems to pertain to an older version of this interaction. Can anybody help me? Has anybody modified this newer version of the Sliding menu?