Hi kkymn,
I recently had a similar problem, I wanted to have 5 adverts show in 1 sidebox.
I eventually figured out that the only way to do that was to have 5 seperate sideboxes but that left me with the same problem you have, headers on every box.
This is what it looks like now:
www.personalised-certificates.com
The adverts at the right are actually 5 sideboxes together.
Here's how I removed the headers.
Step 1
Open includes->templates->template_default->common->tpl_box_default_right.php
scroll to the bottom and remove this:
<h3 class="rightBoxHeading" id="<?php echo str_replace('_', '-', $box_id) . 'Heading'; ?>"><?php echo $title; ?></h3>
Rename this file tpl_box_noheader_right.php and save to includes->templates->CUSTOM TEMPLATE->common
Step 2
open includes->modules->sideboxes->banner_box.php (or whatever box you are wanting to remove header from)
Around line 28 find this:
$title = BOX_HEADING_BANNER_BOX;
and replace with this:
$title = '';
Then just under find this:
require($template->get_template_dir($column_box_default, DIR_WS_TEMPLATE, $current_page_base,'common') . '/' . $column_box_default);
and replace with this:
require($template->get_template_dir('tpl_box_noheader_right.php', DIR_WS_TEMPLATE, $current_page_base,'common') . '/' . '/tpl_box_noheader_right.php');
Save this file to includes->modules->sideboxes->CUSTOM TEMPLATE
And that should be it.