When an order goes thru you will find a “MyStyle” section in each order’s details in your normal wordpress admin > woocommerce orders.
If you want to pull a print file for any design without orders, you can use the free MyStyle Design Manager add on. That will list all of your designs, with the links to the different images and the public page for the design, as shown here:
You can get the MyStyle Design Manager add-on for WP/WC in our marketplace, here:
Have you got it working now? Maybe you were reading “Print Image” as “Print The Image” when really print is not a verb here, it’s “THE Print Image”. So, you can click it, open in a new tab and and then save it thru your browser, or you can right click it, and then use Save As… to download it.
If you still have not gotten it working, can you screen shot for me the section where the MyStyle links are in your order data, then I can see exactly what you’re seeing?