My b2evolution Version: 2.x

I'm using b2evo v 2.4.7 in two sections of my site, and it works fine in Firefox, but the page just doesn't show up at all in Safari or Internet Explorer. You can see it here-
http://bucollegedemocrats.com/media/newsletter.php
http://bucollegedemocrats.com/media/internships.php

And here's a screenshot of http://bucollegedemocrats.com/media/internships.php page in IE- http://img193.imageshack.us/img193/8082/eeshy.jpg

I use a Macbook and Firefox, and I am not a programmer and really only know HTML and CSS, so any help/advice you can offer would be very appreciated.[/i]