I don't see the point of going ga-ga over polls at this point. Remember, at this point in the 2000 race the CNN/Time daily tracking poll had GORE AHEAD by 8 points (see http://www.cnn.com/2000/ALLPOLITICS/stories/09/17/tracking.poll/).
Its great Bush is up, but there is plenty of campaign left- two debates, plus the uncertainty of terrorism in Iraq and on the home front. If you are a baseball fan, just remember the 1996 World Series. The Braves were poised to sweep the Yankees, but the Yankees turned it around last minute to win four in a row.
I think it is unproductive to get caught up in what this poll or that poll says at the expense of staying on message that of the two candidates, only Bush understands that you can defeat Al-Qaida by issuing a subpoena to bin Laden.