try something like this:
Code:
<head></head>
<body>
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="100%" height="200" valign="top">
<iframe name="info1" align="right" height="200" width="150" hspace="10" vspace="10" scrolling="no" src="xxx.htm">
</iframe>
</td>
</tr>
<tr>
<td height="200" valign="top">
<iframe name="info2" align="right" height="200" width="150" hspace="10" vspace="10" scrolling="no" src="yyy.htm">
</iframe>
</td>
</tr>
</table>
</body></html>
ach ja, die Attribute hspace und vspace sind NICHT w3c konform soweit ich weis.