How do I move movie clips when a drag object is over/between 2 movie clip

Hi Folks,

I have a Drag and Drop Exercise. 6 Drag Items and 2 Drop Locations.

What I want is when there are 2 drop items/movie clips already on stage and you Drag the 3rd Movie Clip INBETWEEN 2 Existing Movie Clips, the 2nd Movie Clip shifts down and a place is created for the 3rd Movie Clip.
Source file FLA attached, Saved as Flash 8 From CS3
Thanks
RG

http://www.4shared.com/file/24611229/fc7b029b/en_06_01_0055_ForEE.html