diff --git a/includes/api/api_helpers.php b/includes/api/api_helpers.php
index bf83b53..d62c76e 100644
--- a/includes/api/api_helpers.php
+++ b/includes/api/api_helpers.php
@@ -1,128 +1,131 @@
 <?php
 //
 // API helpers function
 //
 // XML outputs code uses:
 //  - http://www.thedeveloperday.com/xml-beautifier-tool/
 //  - http://snipplr.com/view/3491/convert-php-array-to-xml-or-simple-xml-object-if-you-wish/
 
 /**
  * The main function for converting to an XML document.
  * Pass in a multi dimensional array and this recrusively loops through and builds up an XML document.
  *
  * @param mixed $data
  * @param string $rootNodeName - what you want the root node to be - defaultsto data.
  * @param SimpleXMLElement $xml - should only be used recursively
  * @param string $unknownNodeName - name to give to unknown (numeric) keys
  * @return string XML
  */
 function toXml($data, $rootNodeName = 'data', $xml = null, $unknownNodeName = 'unknownNode')
 {
   if (!$rootNodeName) $rootNodeName = 'data';
   if (!$unknownNodeName) $unknownNodeName = 'unknownNode';
   
 	// turn off compatibility mode as simple xml throws a wobbly if you don't.
 	if (ini_get('zend.ze1_compatibility_mode') == 1)
 		ini_set ('zend.ze1_compatibility_mode', 0);
 	
 	if ($xml == null) {
         if (!is_array($data) && !is_object($data)) {
             //We've a singleton
+            if (is_bool($data)) $data = $data ? 'true' : 'false';
             return "<?xml version='1.0' encoding='utf-8'?><$rootNodeName>$data</$rootNodeName>";
         }
 
         //Starts with simple document
 		$xml = simplexml_load_string("<?xml version='1.0' encoding='utf-8'?><$rootNodeName />");
 	}
 	
 	// loop through the data passed in.
 	foreach($data as $key => $value) {
 		// no numeric keys in our xml please!
 		if (is_numeric($key)) {
 			// make string key...
 			$key = $unknownNodeName . '_'. (string) $key;
 		}
 		
 		// replace anything not alpha numeric
 		$key = preg_replace('/[^a-z]/i', '', $key);
 		
 		//If there is another array found recrusively call this function
 		if (is_array($value)) {
 			$node = $xml->addChild($key);
 			//Recursive call.
 			toXml($value, $rootNodeName, $node, $unknownNodeName);
         } elseif (is_object($value)) {
             $node = $xml->addChild($key);
             foreach ($value as $subkey => $subvalue) {
                 if ($subkey == "lastError") continue;
                 if ($subvalue === null) {
                     //Ignore null values
                     continue;
                 } elseif (is_array($subvalue) || is_object($subvalue)) {
                     //TODO: test this
                     //Recursive call.
                     $subnode = $node->addChild($subkey);
                     toXml($subvalue, $rootNodeName, $subnode, $unknownNodeName);
                 } else {
                     $node->addChild($subkey, htmlentities($subvalue));
                 }
             }
             //die();
             //$array = array();
             //$node = $xml->addChild($key);
             //toXml($value, $rootNodeName, $node, $unknownNodeName);
+        } elseif (is_bool($value)) {
+            $xml->addChild($key, $value ? 'true' : 'false');
         } else {
 			//Adds single node.
             if ($value || $value === 0) {
                 $value = htmlentities($value);
                 $xml->addChild($key,$value);
             }
 		}
 		
 	}
 	// pass back as string. or simple xml object if you want!
 	return $xml->asXML();
 }
 
 function api_output ($reply, $xmlRoot = null, $xmlChildren = null) {
 	$format = isset($_REQUEST['format']) ? $_REQUEST['format'] : 'preview';
 	switch ($format) {
 		case 'preview':
 			echo '<pre>';
 			print_r($reply);
 			echo '</pre>';
             break;
 		
 		case 'php':
 			echo serialize($reply);
             break;
 		
 		case 'wddx':
 			require_once('BeautyXML.class.php');
 			$bc = new BeautyXML();
 			echo $bc->format(wddx_serialize_value($reply));
             break;
 		
 		case 'json':
 			echo json_encode($reply);
             break;
 		
 		case 'xml':
             require_once('BeautyXML.class.php');
             $bc = new BeautyXML();
             echo '<?xml version="1.0" encoding="utf-8"?>';
             echo "\n";
             echo $bc->format(toXml($reply, $xmlRoot, null, $xmlChildren));
             break;
         
         case 'string':
-            echo $reply;           
+            echo $reply;
             break;
 		
 		default:
     		echo "Unknown API format: $_GET[format]";
             break;
 	}
 }
 
 ?>
\ No newline at end of file