Need help with placing a <div> element on page. Won't validate XHTML.

Hey guys:)

Need some help with this code. I had it checked for XHTML 1.0 validation and the validator found 3 errors. Could you help me fix this so that the <divid="box"> will be valid. It works fine but validator says it has errors such as:

ending tag "div" deleated.(not there)

</td>

forgot to close a tag.

start tag

ending tag is'nt open.
</div>

It states that an element might not be allowed.

***************
>>>I'm trying to add the <div id="box"> to the code so that i can have a foreground(not sure if this is the right word.) so my text will be placed over this.<<<*******

Here's the css for the <div id="box">

#box { height: 500px;
background-color: #002868; border-bottom: 1px solid #FFFFFF; border-top: 1px solid #FFFFFF; }

And the HTML for the page.>>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1 transitional.dtd">

<title>
consol

</title>

</head>

<body>

xyz
</div>

<li>
<a href="score.html">Info</a>
</li>
<li>
<a href="score.html">Order</a>
</li>
<li>
<a href="score.html"> consolidation </a>
</li>

</ul>
</div>
</td>

<h1>
consol
</h1>

<p>

blah blah blah...

</p>

</td>
</tr>
</table>

</div>

</body>
</html>

Thanks guys for your help:)

frenzy77