MCI Stuff!

Hi there, I'm pretty new to VB so just shout at me if my technical terms are ****

I am designing a Media Player, I have 2 forms, 1 form is the track (mp3) selecter, and one contains the functions (play stop etc).

I want to be able to select a track in the Listbox (DriveList and Dirlist etC) and play it in the other form; problem is, I have no idea where to start.

I am currently using the MCI feature.

P.s if anyone knows how to make the second form appear underneath the first form (and return there when a button is pressed) I would also appreciate any feedback on that