Yeah, I would guess it's the new version. I got them from themp3company.com, who I'm hoping will accept my return (can't imagine why they wouldn't). There is a reference number on the box (112-0003-06). I'll see what wbrownie has to say...
To answer to the two questions above:
1. It's hard to explain. The best way I could describe it is like listening to music underwater. The bass is missing as well, and the whole sound just is washed out and feeble. It's definitely the jack, because on my laptop it sounded pretty much fine if I didn't push the jack all the way in.
2. Well my left ear is troublesome, and none of the supplied tips give me a good seal. So the left phone keeps coming out while I walk. I also am not a fan of the over-ear cable guide. The cable keeps popping out of the guide close to the phones.
However, I do really like the clarity and detail. Vocals sound(ed) amazing, and the bass, whilst a little lacking for my tastes was really nice and accurate.