[BrandonLR]

I don't know if this was the issue but I did find an error in syntax here:
http://devs.x-cart.com/en/customization_examples/resetting_the_search_parameter_from_any_word_to_al l_words.html

namespace XLite\Module\<YOUR-DEVELOPER-ID>/<YOUR-MODULE-ID>\View\Form\Product\Search\Customer;
class SimpleForm extends \XLite\View\Form\Product\Search\Customer\SimpleForm implements \XLite\Base\IDecorator
{
   protected function getDefaultParams()
   {
       $params = parent::getDefaultParams();
       $params[\XLite\View\ItemsList\Product\Customer\Search::PARAM_INCLUDING] = \XLite\Model\Repo\Product::INCLUDING_ALL;
       return $params;
   }
}

The bold & underlined forward slash between <YOUR-DEVELOPER-ID>/<YOUR-MODULE-ID> should be a back slash, no?