fixed load_class() call in Hooks to get Config from core
diff --git a/system/core/Hooks.php b/system/core/Hooks.php
index 5e017cc..3b063f7 100644
--- a/system/core/Hooks.php
+++ b/system/core/Hooks.php
@@ -52,7 +52,7 @@
 	 */  
   	function _initialize()
   	{
-		$CFG =& load_class('Config');
+		$CFG =& load_class('Config', 'core');
 
 		// If hooks are not enabled in the config file
 		// there is nothing else to do