I just re-sized all of my vertical listing images so that the whole image fits within the horizontal box. Now I'm concerned they're too small! Can I get some expert eyes over to my shop to take a gander. I'm second guessing myself!
Perfect, although I personally crop some of my photos for the first picture so I can get the 'look' I want in the thumbnail; I agree that it would be great if we could control where the image is cropped (or if it is).