Hello Guys,
Im creating a skinning application and everything is working so far except for one feature which is the feature where user can preview there “skin” attached to the selected device.
I attached some of the screenshot from the gelaskins application so you guys can see it 
Here’s the part where i layout the artwork on the device template:

And here is the part where i preview it:

My good friend of mine, iQAndreas who is an active member of this forum told me some of the techniques that were used. I just posted it here so some of you guys can give me other ideas on how this effect is implemented 
It will be a big help if someone can decipher how the developer of the application did this 
Many thanks Flash community!!!