Is it only in some browsers?
The content is sitting in the right place in firefox for me./
But, you do have content that doesn't fit in the widths you've defined.
e.g. The zip.png image is 316px and #leftwrap is 230px, that's where I would start looking.
Only define widths where you must, if you want everything in the sidebar at 230px then set that width on the parent and leave all child elements without a width, they will naturally be 100% if they are block elements.