IE 7 thowing out positioning of some elements

Hi There

AM new to this Forum and hope someone can help. I am fairly new to CSS and struggling with a current problem. I have designed a site for a customer Brighton Site and when previewed in most current browsers there are no problems. When I back check it IE7 there are some positioning issues with a couple of elements. If anyone could help I would be most appreciated.

Regards

G

Below is the code and the CSS that applies to one of the areas

<div id="topindex">
<div class="since"><img src="images/since1992.png" width="303" height="69"/></div>

#topindex .since {
		float:left;
		clear:both;
		padding:10px}