The quickest way to find a receipt for a customer order or previous deposit is to use the back-office Customer Orders report.
In the back-office menu, under the customers, receipts and orders section, select Customer Orders, including workshop.
This will give you a list of all current and previous customer orders.
Orders can be found using the filters for customer and order details
On the order you require, click the triangle to the left of the order on the search grid
Click on the relevant receipt to see previous deposits and transaction details