Quote Originally Posted by niestudio View Post
Installed IH2, uploaded that file, and then installed ZLB, but that file is not part of the ZLB architecture, so you should only have the 1 file to work with. (as far as I know)
Ok...clearly I'm insane. I DO have it. I was confusing the includes/modules/YOUR_CUSTOM_TEMPLATE/main_product_image.php file in IH2 with the includes/templates/YOUR_CUSTOM_TEMPLATE/templates/tpl_modules_main_product_image.php file in ZLB.

I'm going to try re-uploading includes/modules/custom/main_product_image.php from IH2 and see what happens while Diva continues her testing.

Sorry for the confusion folks!