I noticed that questions related to dynamically loading movie clips into the Scrollpane component often went unsanswered. To help, I have provided a link to a simple example that shows how to load and remove dynamic movie clips from a ScrollPane component: http://www.kirupa.com/developer/flash8/code/scrollpane_dynamic_movieClip.zip
An example with more info: http://blog.kirupa.com/?p=30
I will write a tutorial on this topic in the near future. Hope you all found this helpful.