It is indeed the ZJ Black Template. The scrolling image bar never showed up before IH was installed, nor was there a place to upload more than one image (short of the standard of embedding them in the product description). The template however is loaded with jquery additions, although the standard Zen Lightbox 1.5 is installed and works well on the main product image.

I'll browse the ZJ Silver/Black support thread and see what comes up there. Thanks for the idea.