juzarraga you will have to compare your
/includes/templates/your_template/templates/tpl_modules_main_product_image.php
with the one in zen light box. Use WinMerge to make sure you don't have to add some code or take out code. Some template are that way. Don't just over ride it, you will have to merge zen light with your tpl_modules_main_product_image.php in your template. You do with the cherry template anyway. Hope this helps.