Mira así, en explorer 5.0 y en netscape 7.0 funciona ok
<div id="capa2" style="position:absolute;" onmouseover="document.getElementById('capa1').styl e.display='block'" onmouseout="document.getElementById('capa1').style .display='none'">
<table width=100% align=Center bgcolor="#99CCCC" >
<tr><td><img src="2.jpg" width="245" height="184" alt="" border="0"></td></tr>
<tr><td align=right><img src="./flechader.gif"></td></tr>
</table>
</div>
<div id="capa1" style="position:absolute; width:200px; height:115px; z-index:1; background-color: #999933; layer-background-color: #999933; border: 1px none #000000; display: block; left: 75px; top: 278px;">holaaaaaaaaaaaaaa</div>
