Scrolling dynamically created mc's

This is something i’ve been struggling with. How do you scroll a stack of dynamically attached mc’s (like if you’re walking an xml tree and building a menu or something)?

Anyone have any good code I could take a look at and try to figure this out? at one point i had figured out how to get the size of the mc that you are attaching clips to (the size changes based on how many clips you attach). but I would characterize my AS skills as intermediate and I got bogged down…

if anyone knows of a good resource/tute for learning how to do this… please let me know! thanks.