Um... Yeah. Pretty sure that's a different frame.
It's dead similar - so I guess it could be an earlier/later model - or it may even be a different model all together. Mine doesn't have those super-stays, and it's not a disk frame.
Doesn't have the gusset at the top of the seat tube, either - and mine's got a head tube cutout.
Gussets at front end are a different shape, too, and mine doesn't have any cable-guides.
As you said - the tubings thicker on this one, too. Mine didn't come with any stickers, either.
Edit: No bash mounts on mine, either.