Mx game code help please!

**Hello [FONT=Fixedsys][COLOR=red]KIRUPA[/COLOR][/FONT] Community i am creating a game similar to the following:
**www.addictinggames.com/guitarmasters.html
Please play the game, it will help you get a better understanding of my project!

I am upto the part where the skull (or star is what im doing) the star comes down the guitars fret bar (ive allready animated that part) then this is what i need the code for:

When the star is touching the target1 (" target1 " is moviclip instance name) target1 is the star it must be touching

You need to press 1
If you dont these things happen:
The volume goes down a bit
10 Points deducted from the score (dynamic text instance name" scoreBox ")
and the star deletes then regenerates

But if you press 1 when the star (moviclip star istance name:" note1 ")
These things Happen:
The volume stays same
Adds 500 Points to scoreBox
and star regenerates!

SO heres a recap of what should happen:
The star comes down the fret bar
It is on top or touching the target star
Then you press 1
The star dissapears and you score (scoreBox) goes up 500 points!

OR

You Miss the target and this happens:
The Volume goes down
-10 points from the scoreBox
and the star regenerates (or duplicates!)

Please suply code with your reply!
Thanks!
Game Maker Guy

(INSTANCES: Star Moviclip:note1 Target STAR Movieclip:target1 Score DYnamic text:scoreBox)