Conditions are not nessasary, you just need to make the forums inside a table with 2 <td> vars. Like this.
HTML Code:
<table border="0" width="100%" cellpadding="0" cellspacing="0" align="center">
<tr>
<td width="FIXED WIDTH HERE">Forum code here</td>
<td>left side code here</td>
</tr>
</table>
Its acually very easy to do, you just need to know HTML and the Templates in vB.