Hi,
If you want to change the way the image is displayed in the product page, you have to customize the view "product | show_block_img".
The view "product | listing_img" is used in product listings.
In the view, you can do everything you want. So you can add custom php and html, you can add an iframe or load a specific joomla module.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.