Wandererx:
I have image handler installed and it seems to be working great. The one concern I have is the gallery on the product. It seems to create duplicate thumbs (maybe so it's easier to scroll or maybe for aesthetics). Is that by design or do have something borked?
One set of those images opens correctly, the other set opens by it's self in the original window, which is annoying. Any ideas?
You can see it working here: http://driller.com/v2/used-reedrill-44.html
Although I am a fairly new user of Image Handler, I haven't seen any additional image functionality like that in this contribution (if so, I have no clue where it is hiding).
It looks like you are using the ZJ Black 2 template and I believe that template package comes with a bunch of jquery additions, such as that scrolling image navigation bar for additional images. Also, I am not sure if that template comes with a lightbox mod built-in, but I have not seen that style of lightbox before (it doesn't look like zen lightbox or fual lightbox).
I think this is a lightbox / template compatibility issue and not image handler as I have run into something VERY similar trying to get a lightbox contrib to work with a template (first additional image is duplicated in the lightbox gallery navigation).
If you don't get any response on this here you might search the ZJ Silver/Black support thread or the support thread for that lightbox contrib you are using.
Hope this helps a little bit.