[amy2203]

OK, not a programmer by any means, but you are checking to see if the catnum is a ultiple of 3, and then checking to see if it is a multiple of 2....

{ if %cat_num.index% is div by 3} 

this line is checking to see if it is divisiable by 3 in order to start a new row, this creates a 3 column table... what you want to do is check against the cat num, and if true create a 2 column table, so I would do something like...

{if $cat eq "1372"}
   { if %cat_num.index% is div by 2}
    <tr>
    {/if}
{else}
   { if %cat_num.index% is div by 3}
   <tr>
   {/if}
{/if}

it may not be correct, but hth