semplicemente usando una tabella sola invece che due.

<table width="20" border="5" cellspacing="0" cellpadding="0">
<tr>
<td>userattivo</td>
<td>livello1</td>
<td>livello2</td>
<td>livello3</td>
<td>livello4</td>
<td>livello5</td>
<td>livello6</td>
<td>livello7</td>
<td>livello8</td>
<td>livello9</td>
<td>livello10</td>
<td>livello11</td>
<td>livello12</td>
<td>the winner is..</td>

</tr>


<? RIAPERTURA COD PHP...

print "<tr>";
print "<td>$userattivo</td>";
print "<td>$p1</td>";
print "<td>$p2</td>";
print "<td>$p3</td>";
print "<td>$p4</td>";
print "<td>$p5</td>";
print " <td>$p6</td>";
print "<td>$p7</td>";
print "<td>$p8</td>";
print "<td>$p9</td>";
print "<td>$p10</td>";
print " <td>$p11</td>";
print "<td>$p12</td>";
print "<td>$winner</td>";
print "</tr>";
print "</table>";
?>