Okay so, the P2 thing isn't actually the hands (Valve removed the hand materials from P1, no reason why they'd re-add it in P2, especially since they're using the same model, redone). It's a color glitch.
But the P1 thing - that's something else. It's probably not IGN that has it; it's probably the 360 version itself. Kave said he got the old P1 male materials from the 360 version, and IGN's footage was taken from the 360 version as well, so that's my guess.