Замени:[PHP]
<html>
<head>
<title>: : : С л а в я н с к а я М о л о д е ж : : :</title>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1251">
<style type=text/css>
<!--
body {
background-color: #000033;}
-->
</style>
</head>
<body>
<br>
<br>
<center>
<table width="770" border=0 bgcolor="#0C0C7C" cellpadding=0 cellspacing=0>
<tr>
<td colspan=2 rowspan=2><img src="images/header_leftcurve.gif" width=19 height=19></td>
<td colspan=2 rowspan=0 bgcolor="#FFFFFF" ><img src="images/spacer.gif" width=732 height=19></td>
<td colspan=2 rowspan=2><img src="images/header_rightcurve.gif" width=19 height=19></td>
</tr>
</table>
<table width="771" border=0 bgcolor="#0C0C7C" cellpadding=0 cellspacing=0>
<tr>
<td align="left" width="1" rowspan=2 colspan=2><img src="images/spacer1.gif" height="90" width="1"></td>
<td width="768" valign="baseline" rowspan=2 colspan=2><img src="images/spacer1.gif" height="1" width="768"></td>
<td align="right" width="1" rowspan=2 colspan=2><img src="images/spacer1.gif" height="90" width="1"></td>
</tr>
</table>
<table width="771" border=0 bgcolor="#0C0C7C" cellpadding=0 cellspacing=0>
<tr>
<td align="left" width="1" rowspan=2 colspan=2><img src="images/spacer1.gif" height="500" width="1"></td>
<td width="769" rowspan=2 colspan=2></td>
<td align="right" width="1" rowspan=2 colspan=2><img src="images/spacer1.gif" height="500" width="1"></td>
</tr></table>
<table width="771" border=0 bgcolor="#0C0C7C" cellpadding=0 cellspacing=0>
<tr>
<td colspan=2 rowspan=2><img src="images/header_leftbottom.gif" width=19 height=19></td>
<td colspan=2 rowspan=0 bgcolor="#FFFFFF" ><img src="images/spacer_inverted.gif" width=732 height=19></td>
<td colspan=2 rowspan=2><img src="images/header_rightbottom.gif" width=19 height=19></td>
</tr></table>
</center>
</body>
</html>
[PHP]
закрывающий тэг </td> всегда должен примыкать к тэгу до него.