External file's actionscript not working while loaded in main movie-?

This movie is an external swf which is a basic sorta game, the user has to drag and drop the blocks into their correct places to complete the task.

Please have a look at this swf, the fla is too big 2 post.
Basically the problem is: this external file works fine by itself, but when viewed via the main movie when its loaded, it doesn’t display the Well Done Clip when all the Drag and Drop buttons are placed in their correct places.