Framing the Forum with cells ?

[Rickk]

So I've developing a new skin for an upgrade to my forums and I wanted to have some fancy 16px wide cells on each side of the main forum table (outlined in red on the attached screen).

I was able to add them quite easily to the header and the footer (outlined in green on the attached screen), but I can't find the table to insert the TD tag before and after the main cell that contains the forum "bits")

I'm using vb3.5.4 and am tearing apart a style mod by foruma-z called "Sosumi", which can be found here:
https://vborg.vbsupport.ru/showthread.php?t=110446 (I don't know if that's helpful at all - it doesnt look like there are any customization to the areas I'm talking about in this post)

The code I'm using is:

<td width="16" align="left" valign="top" style="background-image:url($stylevar[imgdir_misc]/table_left.png)"> </td>

<td width="16" align="left" valign="top" style="background-image:url($stylevar[imgdir_misc]/table_right.png)"> </td>

Any help would be much appreciated! It seems like something simple but I'm having a lot of trouble figuring it out!