I'd recommend learning a few builds from this thread instead
http://www.teamliquid.net/forum/viewmessage.php?topic_id=284255
Since this guide is a bit outdated.
http://www.teamliquid.net/forum/viewmessage.php?topic_id=284255
Since this guide is a bit outdated.
Actually, this guide comes from the link you provided
(Protoss section -> Safe PvX Openings)