Quote Originally Posted by tpeck View Post
...when I hover over the product image with the words "larger picture" under it, it displays the URL: [domain]/zencart/images/large/filename.gif

Looking at stores where this works successfully, the URL points to the bmz_cache.

Can anyone tell me why my URLs don't point to the cache?

I'm having the same issue. I'm running the latest versions of ZC and IH2. Here's a link to a page on my site where the issue can be seen.