[smoothsailingco.com]

You'd need to know javascript or jquery (would make it a lot easier) to do it combined with the product api.

<script>
    Ecwid.OnPageLoaded.add(function(page) {
       if ( page.type == "PRODUCT" ) {
            $.ajax({
                url:'http://app.ecwid.com/api/v1/[storeID]/product?id=' + page.productId,
                dataType: 'jsonp',
                success:function(json){
                    // json contains the product information                         
                }
            });
       }
});

That would pull the product information and put it in json which you could use to create the images. What's your store url, I could take a look and if it's not too hard, try to do it.