Helen - you won a prize on 2/24/09 so it's still within six months for you, so you can't win another one yet
You can win again on 8/24/09
Mary - you're therefore the winner! Please email me a message with your full address and make a note which book it is so I don't have to figure that out (I'm swamped right now) and I'll get that right out to you! Congratulations!