Adding a MC to an element of an array?

I want to plcae a movie clip in somthing like an inventory, so it will show a movie clip of the element of the array if it is there.
|-----------------------------|
|
[$] <- icon_MC [#]<-amount|
| |
| |
|<—(inventory screen)—> |

Inventory [0]= gold;

and how do I set the value of that element. Say 500gold?