The latest version fixed the block title, but I'm not seeing the fix for the categories listing (see http://livetest.ubercart.org/old/catalog - it's set to have 3 columns). I've verified that this is working on the current Livetest, so some variable or default that you have changed somewhere must still be off.

Regarding the add to cart button on products w/ attributes/options... I actually like the way it is. If a store has products where it makes sense for the attribute forms to be display in the catalog, they can turn it on with your setting. Otherwise, it redirects to the product page w/ the message saying the customer needs to select some stuff. I think in the future I'd like to see a trimmed down intermediate page that is just the product details and the form, but this is a pretty good solution for now.