Hi, I'm running Zen Cart version 1.3.8a.

I'd like to display an image below each product to say whether it is in stock, or out of stock, instead of displaying the units in stock.

I've seen loads of posts about how to do this on the individual product page, but I'd like to do this on the main product listing page (the main shop page).

I assume something needs adding/altering in:
tpl_modules_product_listing.php ?

Thanks in advance!