My post formatting does not appear category or archive views. I have checked the page source view and confirmed that it does not appear to be a CSS problem, the tags ( e.g. <h3>, , ) are not present in category or archive source views.
I have installed a basic fresh version of WP 2.7 & Thematic 0.7 with no plugins and still get the same effect, see http://sdaresources.org/temp/?cat=1 . I must have done something wrong - any suggestions what it is?