Please help me! As3 game!

Hi guys, I am really short on time and need someone to please help me with a final project! I followed a tutorial on YouTube on how to make coins for a platformer, the video however did not show how to keep count of the coins you collect…I’ve tried a million things but nothing seems to work! :frowning:

Here is a link to the video http://www.youtube.com/watch?v=tkPSMgEmYng

If someone could please guide me into what I have to do to keep track (score) of how many coins I pick up, I would really really really be grateful!!! :smiley: