Customise Easypopulate.php for oscommerce

Easypopulate is a module for oscommerce and it usually updates the mysql database from a CSV file. It either updates a current product or inserts a new product. It does this by comparing field "v_products_model" or "v_vendors_prod_id" (not entirly sure) . The problem is we have products that have the same value for "v_products_model". We also have products with the same "v_vendors_prod_id". SO What we need is for someone to edit easypopulate files (two) so that it looks at BOTH the "v_vendors_prod_id" and the "v_products_model" and only updates a product if both of these values are the same, otherwise it should insert a new product. The [login to view URL] file is attached as is [login to view URL]