Well if you would like to horizontaly align something in a cell the you must use
code:
<table>
<tr>
<td valign="top" align="left>text</td>
</tr>
</table>
valign= Vertical Alignment
align= Horizontal Alignment
but if you want to align a table use:
code:
<div align="center">
<table>
<tr>
<td>text</td>
</tr>
</table>
</div>
there ya go