Browser-rendering Issue

I’m using Thesis theme with WP for my website, http://WiredOregon.com.

If you’re viewing the site with virtually anything except Internet Explorer, you’ll see a large “feature” element at the top of the page, just under the header and nav bar.

In browser-testing, we’ve discovered that all versions of MSIE just completely bypass this entire element and the four feature boxes just below it, and begin rendering the actual blog-style teaser entries directly below the header and nav bar.

I’ve found this hack, which addresses MSIE rendering issues: http://www.thesishacker.com/ie-hack

But the code in this seems to be addressing horizontal issues and not vertical ones, so before I implement the rather complicated code in the above link, I wanted to see if anyone else had any experiences like mine and/or any suggestions for fixing this thing.