changing docs refs to future release 2.0.0
diff --git a/user_guide/libraries/trackback.html b/user_guide/libraries/trackback.html
index 9e54bbf..3072060 100644
--- a/user_guide/libraries/trackback.html
+++ b/user_guide/libraries/trackback.html
@@ -28,7 +28,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 1.7.2</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.0</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>