A quick bit of feedback... it seems like the display may be optimized for a particular theme or set of CSS rules? Check out this page on the old Livetest - http://livetest.ubercart.org/old/catalog/27/stuff. I just saw that turning off "Add to Cart" fixes this problem, but it might be nice to have the default functionality here... where it just displays the add to cart button and will send you to the page if there are attributes that need to be selected. It would be nice on the product grid for products to have a more uniform vertical alignment, but that may just depend on the store owner using all the same sized images and product names. Obviously, the product grid isn't for everyone.

I like what you've done with the settings page, though, and I have a few questions about some settings... Not checking the box for the link display didn't seem to work to make "Catalog" not a link (and clicable is a typo of clickable there). Also, the main catalog browsing seems to have been changed so it's only showing 2 columns at http://livetest.ubercart.org/old/catalog instead of the 3 that I've selected.