Can’t See Individual Pages in IE 7

I’ve moved over 5,000 entries from Movable Type to WordPress 2.5. The links work in Firefox and Safari, but not IE7 – haven’t tried IE6 yet. When I click on an Entry, the page shows a “Whoops That page isn’t here”.

Here’s a sample link: https://www.aeropause.com/wordpress/2008/04/chains-of-olympus-goes-a-bit-too-far/

I’ve changed all the internal links to reflect MT’s link structure as close as possible before the import. I’m just not convinced it’s a character issue? I’ve used the guides found in the forums here on how to migrate a site from MT to WP, too.

Does anyone have a suggestion on this?
Thanks a lot,
shane