I've got a suspicion that it has to do with anchors <a> without href= attributes being depricated in HTML 5, though the page is XHTML 1.0 transitional which should support it. I looked at the source html and the links and anchor tags are formed correctly, but the browser is just not responding to them. Compatability view in IE9 fixed the problem for me, so I believe IE9 must have removed some anchor functionality.
Translation - anchors are the html elements that mark the spots in the page where the brower should go when you click the 'Go Down', 'Top', 'New' etc.