Bat, I do not have a 2011 calendar handy but I do know that there was an Oct 30 that was the 5th Saturday in 2010.
Thus, I do not think there CAN be a 5th Saturday Oct 30 in 2011. 29th or 31st mebbe, I forget which way the calendar progresses.
OOPS. Ye are talkin' Sunday not Saturday. My bad. Sorry.