CSS IE7 Issue

My site - [login to view URL] is written using css. It looks ok in firefox but renders incorrectly in IE7. <br> I need someone to tell me what I have done wrong and how to fix it. <br> The only incorrect layout is that the images just below the top of the page are showing underneath the text. The text should appear below the images (as seen in FF) <br> Simple as that - first correct answer to the problem is the winning bid.