IE7 anchor tag problem

Question

Hi, I am having a weird problem with a webpage in IE7.

The structure is as follows:

<a id=".." href="....">
  <img id=".." src=".."/>
    <div class="">
       <em>
         <img class=".." src=".." alt=".."/>
       </em>
       <div class="..">My text</div>
    </div>
</a>

Everything is "clickable" except the img inside the em tag. Previously the div's were span, and I thought that making them div would solve the problem... As said, this works fine in FF, Chrome, etc., but NOT in IE7(suprise!)