Assign/change image
From Seggiano Docs
There are several places where images are set for products.
1. Locate the product you wish to edit:
https://system.netsuite.com/app/common/item/itemlist.nl?whence=
2. From the tabs within the edit product page, select 'Web Store'. In the main section, there are two fields for the main and thumbnail images. Further down is a custom field for the larger pop-up image.

