Poner El menú arriba

<style type="text/css">
body {font-family: Arial, Helvetica, sans-serif; margin: 0; padding: 0;}
#marco { width:921px; margin:10px 0; padding:0px; text-align: left;}

.preload2 {background: url(URL Fondo Mhover);}
.menu2 {padding:0; margin:0; margin-bottom:0; list-style:none; height:25px; background:#fff url(url Fondo de menu) repeat-x; position:relative; font-family:arial, verdana, sans-serif; }
.menu2 li.top {display:block; float:left; position:relative;}
.menu2 li a.top_link {display:block; float:left; height:25px; margin-left:6px; line-height:25px; color:#Letra M; text-decoration:none; font-size:11px; font-weight:bold; padding:0 0 0 6px; cursor:pointer;}
.menu2 li a.top_link span {float:left; display:block; padding:0 10px 0 6px; height:40px;}
.menu2 li a.top_link span.down {float:left; display:block; padding:0 10px0 6px; height:25px;/*background:url(prodrop2/down.gif) no-repeat right top;*/}
.menu2 li a.top_link:hover {color:#fff; background:url(URL Fondo Mhover);}
.menu2 li a.top_link:hover span { background:url(URL Fondo Mhover)}
.menu2 li a.top_link:hover span.down { background:url(URL Fondo Mhover)}
.menu2 li:hover > a.top_link {color:#Letra Mhover; background:url(Fondo Mhover);}
.menu2 li:hover > a.top_link span {background:url(URL Fondo Mhover);}
.menu2 li:hover > a.top_link span.down {background:url(URL Fondo Mhover);}
.menu2 table {border-collapse:collapse; width:0; height:0; position:absolute; top:0; left:0;}

.menu2 a:hover {visibility:visible;}
.menu2 li:hover {position:relative; z-index:200;}

.menu2 ul,
.menu2 :hover ul ul,
.menu2 :hover ul :hover ul ul,
.menu2 :hover ul :hover ul :hover ul ul,
.menu2 :hover ul :hover ul :hover ul :hover ul ul {position:absolute; left:-9999px; top:-9999px; width:0; height:0; margin:0; padding:0; list-style:none;}
.menu2 :hover ul.sub {left:6px; top:25px; background: #fondo L1; padding:0; /*border:1px solid #1E8BB5; white-space:nowrap;*/ width:auto; height:auto; font-weight:normal;}
.menu2 :hover ul.sub li {display:block; /*height:20px; */position:relative; float:left; width:160px; border-bottom:1px solid #Borde L1,2 Inf; border-left:1px solid #Borde L1,2 Izq; border-right:1px solid #Borde L1,2 der; margin-bottom:0;}
.menu2 :hover ul.sub li a {display:block; height:auto; font-size:11px; padding:4px 3px; line-height:1; color:#Letra L1,2; text-decoration:none;}
.menu2 :hover ul.sub li a.fly {background:#fondo L1 url(URL VIÑETA) no-repeat 150px 6px;}
.menu2 :hover ul.sub li a:hover {background:#fondo L1,2hover; color:#Letra L1,2hover;}
.menu2 :hover ul.sub li a.fly:hover {background:#fondo L1hover url(URL VIÑETA) no-repeat 150px 6px;}
.menu2 :hover ul li:hover > a.fly {background:#fondo L1}

.menu2 :hover ul :hover ul,
.menu2 :hover ul :hover ul :hover ul,
.menu2 :hover ul :hover ul :hover ul :hover ul,
.menu2 :hover ul :hover ul :hover ul :hover ul :hover ul
{left:160px; top:-1px; background: #fff; padding:0; /* white-space:nowrap; */width:auto; z-index:300; height:auto;}
.menu2 :hover ul.sub li ul {border-top:1px solid #borde L2 sup; background: #fondo L2; z-index:300;}
</style>


Luego este es el codigo de tu menu, puedes pegarlo en un box y luego con el codigo de pirro ubicarlo donde quieras
Código Menu:

<div id="marco">
<span class="preload2"></span>
<!--MENU-->
<ul class="menu2"><img src="URL FONDO IZ" align="left" /><img src="URL FONDO DER" align="right"/>

<li class="top"><a href="#" id="Menu1" class="top_link"><span class="down">Menu1</span>
<!--[if gte IE 7]><!--></a><!--<![endif]--><!--[if lte IE 6]><table><tr><td><![endif]-->
<ul class="sub">
<li><a href="#">Link 1.1</a></li>
<li><a href="#">Link 1.2</a></li>
<li><a href="#">Link 1.3</a></li>
<li><a href="#">Link 1.4</a></li>
</ul>
<!--[if lte IE 6]></td></tr></table></a><![endif]-->
</li>

<li class="top"><a href="#" id="Menu2" class="top_link"><span class="down">Menu2</span>
<!--[if gte IE 7]><!--></a><!--<![endif]--><!--[if lte IE 6]><table><tr><td><![endif]-->
<ul class="sub">
<li><a href="#">Link 2.1</a></li>
<li><a href="#">Link 2.2</a></li>
<li><a href="#">Link 2.3</a></li>
<li><a href="#">Link 2.4</a></li>
</ul>
<!--[if lte IE 6]></td></tr></table></a><![endif]-->
</li>

<li class="top"><a href="#" id="Menu3" class="top_link"><span class="down">Menu3</span>
<!--[if gte IE 7]><!--></a><!--<![endif]--><!--[if lte IE 6]><table><tr><td><![endif]-->
<ul class="sub">
<li><a href="#">Link 3.1</a></li>
<li><a href="#">Link 3.2</a></li>

<li class="mid"><a href="#" class="fly">Link 3.3
<!--[if gte IE 7]><!--></a><!--<![endif]--><!--[if lte IE 6]><table><tr><td><![endif]-->
<ul>
<li><a href="#">Link 3.3.1</a></li>
<li><a href="#">Link 3.3.2</a></li>
<li><a href="#">Link 3.3.3</a></li>
<li><a href="#">Link 3.3.4</a></li>
</ul>
<!--[if lte IE 6]></td></tr></table></a><![endif]-->
</li>

<li class="mid"><a href="#" class="fly">Link 3.4
<!--[if gte IE 7]><!--></a><!--<![endif]--><!--[if lte IE 6]><table><tr><td><![endif]-->
<ul>
<li><a href="#">Link 3.4.1</a></li>
<li><a href="#">Link 3.4.2</a></li>
<li><a href="#">Link 3.4.3</a></li>
<li><a href="#">Link 3.4.4</a></li>
</ul>
<!--[if lte IE 6]></td></tr></table></a><![endif]-->
</li>

</ul>
<!--[if lte IE 6]></td></tr></table></a><![endif]-->
</li>

</ul>
<!-- FIN MENU-->