Custom Center Box

[Figster]

Hi, I am trying to add a center box to my 1.3.9 site, just like the 'whats new' and 'featured products' center boxes, only it will run an amazon script.

What I have done so far:

I cloned the tpl_modules_whats_new.php and replaced this code with the script:

<?php
  require($template->get_template_dir('tpl_columnar_one_display.php',DIR_WS_TEMPLATE, $current_page_base,'common'). '/tpl_columnar_one_display.php');
?>

Then I added

 define('BOX_HEADING_AMAZON', 'Amazon');

just under the define for whats new in my english.php.

Then I added a .centerboxamazon to the css box classes on my css

Now i am stuck.. where do I go from there?

The script will show similar products that amazon offers to what I have, with my affiliate id of course. ...

I searched the wiki, I searched the forums, and I searched the add ons, and could not find out what I need to do to create a custom center box.