The error I was having was related to the navigation code in the gv_send file. Since I am not using that portion of Oscommerce I commented out the following lines:
// $navigation->set_snapshot();
// $back = sizeof($navigation->path)-2;
// '<a href="' . tep_href_link($navigation->path[$back]['page'], tep_array_to_string($navigation->path[$back]['get'], array
// ('action')), $navigation->path[$back]['mode']) . '">' . tep_image_button('button_back.gif', IMAGE_BUTTON_BACK) . '</a>';
Hence why I had the error. Works like a charm now.