Making an mp3 player, need help

Right, so I want an mp3 player using a skin i’ve made. So far I suppose it’s looking ok, but i’m using an Media controller above the flash document and manipulating it from the buttons i’ve placed on my image(the skin).

So far i’ve made so it can play/pause and show song name on the display but I can’t get the progress bar to work, I don’t know the property for the progress and the “progress” propertie only returns Undifined.

I’d also want to know how I can make a seeker(Press and hold the progress bar to go to go back or forward in the song).

Please also tell me if theres an even more effective way to play songs externaly perhaps without using an controller outside the document.

Edit: Right, So incase you’re to lazy to read, I need help to create a custom working progressbar for media controller.

.fla file here, the music is not included.