Once upon a time I recieved the good
advice to use Movieclips as buttons since they tend to be more reliable...
This has served me well, but I've been designing a new sight and wanted to get more into Action Script to control functions to help improve both my programming and keep my file size down.
So I decided to create an instance of a block (rectangle shape as another movieclip) and have multiple layers. One which controls the actions of two other blocks. The upper most block would not be visable until I ran the cursor over it (increase its Alpha property from 0 to 100 one step at a time in a loop). This would reverse when the cursor ran off (reduce Alpha property from 100 [or less] back to 0 in a loop).
I've read and re-read every flash book I own on the subject and cannot understand why I can't control another instance of a different movieclip.
Someone else may be able to, but I cannot understand what you are trying to describe nor what you are having a problem with.