[vbresults]

1. If you don't have vBulletin in debug mode, put it in debug mode so you don't have to edit the Xml by hand.
2. Download product-extended_legacies. If you are running vB3, this will be required -- but do NOT make it a dependency. It won't install on vB4 because it's not needed there.
3. PHP Code:

   $hookName = 'postbit_signature_start';
$template = 'MYCODE';

if (defined('MAJOR_VERSION') && MAJOR_VERSION == 3) {
    vB_Template::$convert[$template] = array('template' => "{$template}_LEGACY");
}

$templater = vB_Template::create($template);
$template_hook[$hookName] = $templater->render() . $template_hook[$hookName]; 


Extended Legacies lets you use the vB4 template syntax in vB3 so you don't have to write template code for each version.

First, what the code above does is set our hook name and vB4 template name. Then, it checks if you are running vB3. If you are, it will change the template from MYCODE to MYCODE_LEGACY (the vB3 equivalent) automatically. Otherwise, it will load the vB4 template MYCODE.

The above code should place your markup below posts but above the signature.