kaddie:
I have Image Handler installed. It had an additional_images.php to overwrite my original. Perhaps this has something to do with it? I wouldn't think so, but I could be wrong.
KaddieSo I did some more looking at your site.. It looks like you are using a Template Monster template (AKA Template Monstrosity) You're not going to like hearing this, but IMO a HUGE part of not being able to get to the bottom of your issue may in fact be attributed to the Template Monster template you are using..
TM Templates IMO are a HUGE no no.. They contain crippled crappy code, broken code, compunded by poor use of nested divs. (One page on your site I saw nested divs TEN deep just to store a few images) They are in essence style over substance, and you don't need them to build nice looking Zen Cart sites. ANYTHING you see in a TM template can be done using the Zen Cart template sytem and overrides. (and I do mean ANYTHING -- there are LOTS of good examples of GOOD LOOKING sites that DO NOT use TM templates..)
I lost a client over TM templates -- so I REFUSE to mess with them again.. (She INSISTED on using one and then was upset when in early testing the template broke EVERYTHING!!) TM "design" shortcuts BREAK normal Zen Cart functionality, and unfortunately because you have to wade through their crappy template code, it's hard to tell what works and what doesn't and why..
There's an old TM thread here where their people actually had the nerve to come to the forum and try to defend their hacked templates. Then after getting a cyber beatdown from some of the vets here, they acquiesced and agreed to show a sample of a properly built site.. After making that promise, POOF, they disappeared and never returned.. That to me was the REAL proof of how horrible their product actually is..
Anyway I digress.. So to add to my suggestion above I suggest you do this using a GENERIC template.. Get every thing to work from a FUNCTIONAL standpoint first THEN make it pretty...
Use this tutorial as a guideline for building a generic vanilla template: https://www.zen-cart.com/tutorials/index.php?article=142.
Build the site from scratch and see if you don't have better luck getting everything to play nice together..