Nice job.
I've gone over the template a million times and I've gotten rid of the spacers, moved them around and the news and comment postbits still jut off 10px to the right.
I have a table width of 800px, spacer of 10px, and everything is fine in my normal postbit in showthread, but in shownews there is 20px padding on the left and 10 px padding on the right. This causes the postbit to actually come off the page by 10px on the right side.
I'm going to try comparing source code between shownews and showthread and see where that goes.
Can't wait for 1.3.0
Edit: Comparing the source code, I first noticed that this somehow breaks my RSS feed for my News forum... Clicking RSS up in the URL bar leads me to a blank page if I'm in a forum with your hack, but it works normally in the others. It might not break the feed per-se, but something's not right.