I am dissecting a sample

It is like a game, with different layers and mc, I found the place for everything, but I don't know where to look for sound, the library has 3 mp3 sounds. This sample is made of graphics, mc and sounds , , which i found them, what i cant find is the sounds.
Your help is appreciate...

check all the actionscript. If you find, something like: loadSound("some name here"); then some of the sounds are loaded from another location