Stefan,
Thank you so much for your help! I can't believe how I over complicated it.
The following ended up working;
<div style="width:99%; border: 1px solid #ccc; margin-top:10px;">
<br><center><a href="
http://www.antennagurus.com"><img src="/images/Apple.jpg" width="200" height="81" border="0"></a>
</center><br>
</div>
There seems to be a little more white space around the logo than needed, but I'll take it.
Thanks again, Paul