Dolphin Store Module

In version 7.1, when someone purchased an item from one of my site members it automatically processed the order and made a "download now" button available after purchase. In Version 7.1.6 that I have now... you have to manually type in a "Order ID".... How can I Get An Order To Automatically Process the order????? Each one of my members sells products from their page.... it is a hassle to type in an order number for 50 orders a day or so...  thank you so very much!!!