Here are some stylistic variations to try:
Change the extra information so that the category sits on its own line before the other two bits of information. Also try adding a top border to the comment and pingback items and making sure that the pingback border does not touch the border to its right.
Get rid of the margins on the entry titles and instead use padding and background positioning to place the title text and background image as they were in the project. This will also necessitate the removal of another border.
This is a double change. First, darken up the weblog's title with some background and border changes. Second, push the borders on the image outward by a pixel so that the background is visible between the image and the double border.