I'm pretty sure that's not a Tablet PC. Sure, it may be a "tablet PC" but not "Tablet" as in the Microsoft standard. That means the XP Tablet operating system wasn't installed. You can't just install XP SP2 over a plain-vanilla XP SP1 and get Tablet 2005, you have to begin with XP Tablet. And it isn't for sale, it comes with Tablet PCs.