well, i tried that a bit ya...i assume thats a part of the solution, but the problem i had was that it simply made the product tiles bigger or smaller and didnt change the grid layout for the largest size screens...so far its pretty stock installation, there are a couple different sites but i didnt learn about the test site policy/procedure yet either....was just going to ask of that too
one is a free lic, one is business lic btw...
edit: oh if it makes a better picture it has categories hidden, its as if only featured products headline the page on a top bottom template style