Sorry, I couldn't find pricing data for that day. The closing price for Apple (AAPL) on August 31, 2007 was $4.16. It was down 0.7% for the day. The latest price is $245.27.
DATE
OPEN
HIGH
LOW
CLOSE
VOLUME
August 31 2007
$4.19
$4.19
$4.13
$4.16
876,887,200
Daily pricing data for Apple dates back to 12/12/1980, and may be incomplete.