Need Function that will find ordered product, and display the product code in a 2nd workbk

Here is what I am trying to do. The customer receives the file titled "OrderForm.xls", and enters the quantity of each product that they wish to purchase. I have entered quantities for 4 products as an example.

I am trying to enter a formula/function into the second file (called "Bill_Of_Ladding.xls") beginning at cell "A19" that will look at Column "C" in the OrderForm.xls file, beginning at cell "C13", and continuing through cell "C40". The function would print the product code in Column "A" of the "Bill_Of_Ladding.xls" file for the first product that is ordered. In this case, that would be product code 215 (1% LowFat White Milk). Likewise the function continues to look at the "non zero" numbers in Column "C" of the order form, and it would print the corresponding product code in cells A20, A21, etc., until it has printed all products that have an ordered quantity.

I don't know how to do this. Your help is greatly appreciated.

Perfect, that is exactly what I needed. THANK YOU!-6