ActionScript 3.0 :: Getting Coordinates From A Dragged Class

I have a simple game that allows the player to drag counters around a board (just a background image).There are 23 counters created in the main .as class by calling another class, called "Units.as". The counters are added into an array in the main class like this:counterarray[0] = new Units("1",2);(where "1" and 2 define the label and colour of the counter)I do this for all 23 counters.[code]The class Units.as defines the counters as rectangles and places mouse listeners so they can be dragged around.My problem: I want to save the information about the counters to a shared object, but if you move a counter around, the counterarray[0].x and .y remain stubbornly where I originally set them - as 100 and 50.

I tried passing the x and y co-ordinates to Units (e.g. counterarray[0] = new Units("1",2,100,50); ) but while this works for placing the units, the value of counterarray[0].x is now zero and doesn't change when the counter is dragged around.I've only been using AS3 for a couple of weeks so suspect I am missing something obvious, but I've spent the last couple of days searching the internet & can't find it.