trying to create biblio nodes with drupal_execute

My client needs a biblio node created automatically when another piece of content is created.

calling drupal_execute on a biblio_node_form is getting to the validation hook without errors but it is not getting past that. if leave necessary bits of the form out, i do get form validation errors.

In the process of debugging, I saw that nodeapi is being invoked with $node->type == 'biblio' && $op == 'validate' when I select 'web article' manually creating a biblio node.

It was called with $form_state['values]['op'] = ''Populate using DOI''

I thought maybe that had something to do with what I was trying to do, but I couldn't get around it.

function auto_biblio_entry_menu(){
		$items['admin/settings/biblio/auto'] = array(
		  'title'             => 'Auto Create Biblio Settings',
		  'page callback'     => 'drupal_get_form',
		  'page arguments'    => array('auto_biblio_entry_settings'),
		  'access arguments'  => array('administer biblio'),
		  'type'              => MENU_NORMAL_ITEM,
		);
		return $items;
}

function auto_biblio_entry_settings(){
	$options = node_get_types('names');
	
	$form['auto_biblio_entry_types'] = array(
		'#type' => 'checkboxes',
		'#title' => t('These node types automatically have biblio entries created'),
		'#options' => $options,
		'#default_value' => variable_get('auto_biblio_entry_types', array()),
		'#description' => t('A biblio node will automatically be created with type "Web Article"'),
	);
	return system_settings_form($form);
}

function auto_biblio_entry_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL){

	if($node->type == 'biblio' && $op == 'validate'){
	//	print "validating biblio:<br /><pre>"; print_r($node); print "</pre>";
	}
	if( $op == 'insert' &&  in_array($node->type, variable_get('auto_biblio_entry_types', array() ) ) ){

		global $base_url;
		$bib_node = array(
			'uid' => (string) $node->uid,
			'name' => (string) $user->name, 
      'type' => 'biblio', 
      'language' => '', 
      'body' => NULL, 
      'title' => $node->title, 
      'format' => NULL, 
      'status' => true, 
      'promote' => false, 
      'sticky' => false, 
      'created' => time(), 
      'revision' => false, 
      'comment' => '0', 
      );
     $bib_node = (object) $bib_node;
	//	$bib_node->uid = $node->uid;
	  module_load_include('inc', 'node', 'node.pages');
	  
	  
		$values = array();
	//	$values['op'] = t('Populate using DOI');
		$values['biblio_type'] = "107";
		$values['title'] = $node->title;
		$form_state = array();
		
		$values['biblio_year'] = date('Y', $node->created);
		$form_state['values'] = $values;
	
	//	drupal_execute('biblio_node_form', $form_state, $bib_node);
		$x = 0;
		foreach($node->field_author_reference as $author){
		dpm($x . " time through");
			$values['biblio_contributors'] = array(
				'1' => array(
					"$x" => array(
						'name' => _auto_biblio_entry_author_name($author['uid']),
						'auth_type' => 1,
						'cid' => null,
						'rank' => $x,
						),
					),
				);
				$x = $x + 1;
		}
		$values['biblio_publisher'] = "Solutions";
	  $values['biblio_type'] = "107";
		$values['biblio_abst_e'] = $node->field_abstract[0]['value'];
		$values['biblio_url'] = $base_url . '/node/' . $node->nid;
		$values['biblio_type_name'] = t('Web Article');
		$values['name'] = $node->name;
		

	/*	$values['doi_data'];
		$values['paste_data']; */
		$values['op'] = t('Save');
		
		$form_state = array();
		$form_state['values'] = $values;
		drupal_set_message("creating bib after feat");
		dpm($form_state);
		drupal_execute('biblio_node_form', $form_state, $bib_node);
		$errors = form_get_errors();
		dpm($errors);
		if (count($errors)){
			drupal_set_message("A biblio node may not have been created");
		}
	}
}

function _auto_biblio_entry_author_name($uid){
	$result = db_query('SELECT value from {profile_values} WHERE uid = %d AND fid IN(1,2)', $uid);
	$first = db_result($result);
	$last = db_result($result);
	//Return LastName, [F]irst letter of First Name
	return $last . ', ' . $first[0];
}

The code is sort of ugly in the middle since I was trying to debug it.