How to play a sound on drag and drop?

I've been tasked with creating a drag and drop game for College, and I would like to make it so that when an object is picked up/clicked on, a small 'pop' sound will play, and when it is successfully placed on a target, a slightly different 'pop' sound will play.

I'm using ActionScript 2.0 on Flash CS5.5.

I've got the drag and drop done, I just need to add the sound counterpart. I've seen some tutorials, but they're way too vague for me.