Hi.

I realized yesterday, that the achievements on Steam wasn't working. I don't know exactly what I did, but it's working now anyway.
At least it did when I played it. So, if any of you noticed this, now you can get them. =)
Not sure if you'll receive the ones you should've had though. Very sorry about this.

EDIT. It seems you need to start a new game for it to work.

Thanks, for the headsup Kim!