Alas, I only installed imagecache because it was on the list of suggested modules that went along with Ubercart. My Image Toolkit is GD and is working fine with modifying and displaying images in other content. I just tried adding an image to a new product, and I don't see anything happening in files/imagecache, even checking in realtime at the various stages of navigating to a product listing, when one might suspect an image file would be being manipulated to create thumbnails, previews, etc. and the manipulation software would be storing temporary versions of the images it needs. BTW, I'm using imagecache 1.5 in accordance with another recommendation on one of the other image threads that dev versions and release candidates be avoided.

I guess what I find most puzzling in all of this is that Status Message saying Ubercart has automatically configured product image support. That suggests to me that the various supporting image modules and filesystem have been verified and deemed good, and that when I upload images they'll show up in their appropriate places and sizes in my catalog.

thanks for any and all help!