More progress. I added <div style=”clear:both”><div> at the end of single.php, but before the footer and then set the original div styles back to “three-fourth” and “one-fourth last”. Chrome looks great. IE is still readable, but the sidebar is still below the post. The footer seems to be outside of the main parent a little too, but its bearable.
If anyone has any guidance to polish up this last bit, I’d greatly appreciate it!