Bizarre Internet Explorer 7 problem - Several of my pages are not displayed AT ALL

I've been really itching to test this again since I first tried the Vista Beta. In my test of IE7 in the beta of Microsoft Vista, I found that this page came up as "Internet explorer cannot display the webpage." The error page goes on to suggest a number of connectivity or availability problems. I even tested side by side with Firefox which WAS able to display the page and Explorer 7 which wasn't. I thought it might just be a rendering bug of some sort, but today got a chance to try IE7 on Windows XP (RC1). So... the problem is still there, I can find NO other browser exhibiting the same behavior. It affects averyjparker.com, northcarolinagenealogy.net and southcarolinagenealogy.org, but NOT onlineradiotv.com (which all by the way are hosted out of the same VPS - so I know the VPS is up and the database server is just fine....)

I'll be looking to find out what there is in the template that might be leading to this problem and I'll report on what I find. No - I don't think it's the firefox download links.... but I'm really curious to solve this - (especially given that IE7 is going to be streamlined into the update process SOON.)