"I would really rethink an image that is that big, but what ever works for you. Good luck." - godspeed27

Yes, perhaps your right about that, worth thinking about how big these images are. I can't just forget about the 56k crowd, which represents a large part of my audience.
I use the large pictures for something such as a pack of needles, which I though people might like to see the points on the needles. Here is an example of an image that is large and includes the packaging in the picture (a lot of people tend not to use packaging in their pictures, but I think it might give viewers more information) http://fabricstashinc.com/index.php?...products_id=32 I notice that some of the quilters who come into the physical store examine the products close to their face, so I thought closer is better.

"thickbox"

Have not ever heard of this, but it seems interesting. I will google for it, and see if implementing it will help.

Thanks very much for your concern