you are supposed to put the excat version number in your signature to use the board.
with that said...
I would place a table inside the lower division tag.
<table cellpadding="0" cellspacing="0">
<tr>
<td>Info</td>
<td>Info</td>
<td>Info</td>
</tr>
</table>
each set of <td></td> tags is a new column.
you can play with the cellpadding and cellspacing if you like.
I know some people don't like tables but I think this is the easiest way for beginners, since you don't have to mess with nested DIV tags and the float property.
So give it a try.