In your last IE conditional comment, you didn’t close the <style>
element properly:
<!--[if IE]>
<style type="text/css">
/* place css fixes for all versions of IE in this conditional comment */
#headerright, #mainContenttext, #mainContentrighteducation, #mainContentrightexpertise { zoom: 1; }
/* the above proprietary zoom property gives IE the hasLayout it needs to avoid several bugs */
</syle>
<![endif]-->