Ok! I tried to make a layout similiar to the current one but using Bloggish - test. I'm not sure if it'll function well, since free accounts don't have custom comment pages... but it's full-screen, so everything should fit. Here's the CSS file if you want to try it out.
Look and Feel > Layout: Bloggish, theme: (None) Custom Options > Layout Type: Two columns (left), Use layout's "Base Weblog" stylesheet: (yes), Custom stylesheet: paste the CSS text.
Let know if it's of any use, I'll work on it some extra.