Finally more or less got the grid to do what I want on the front page though it’s still a little ugly yet (see http://gandrews.webfactional.com/icccrdev/ ), but it’s having unexpected consequences on category pages (see http://gandrews.webfactional.com/icccrdev/category/blog/ ). What I’m realizing is that category listings do not appear to render a particular template (seeing this thanks to a helpful widget which tells me which template is being rendered; it comes up blank on that category page, see the bottom).
Is there some way to ensure category pages render a particular template? Are they actually rendering one and I’m just not getting the message about which one it is?
The template for category pages is category.php which is missing from this theme and hence it falls back to index.php. You can clone index.php to category.php and make the desired modifications there.
Great, Daniel, thanks — that helps!