Reemplazá <a href="www.yahoo.com"> por
<a href="http://www.yahoo.com/">
<hr noshade size=1><img src="http://www.gograph.com/Images-8712/ClipArt/cat03.gif" height="50" border=0 align="absmiddle"> <font size="2" face="verdana" color="#000000">
bet[/CODE]