Code :
<a href="http://youngedward.co.uk" > <img src="http://youngedward.co.uk/banner/young-edward.gif" alt="" height="90" width="728" /> </a>

Code :
<a href="http://youngedward.co.uk" > <img src="http://youngedward.co.uk/banner/banner_small.gif" alt="" height="60" width="468" /> </a>

Code :
<a href="http://youngedward.co.uk" > <img src="http://youngedward.co.uk/banner/banner_sidebar.gif" alt="" height="200" width="200" /> </a>