In October '08 I tried to get ANY time slot for the week we were there and there was not one opening. But I think I waited until 7-10 days prior to our trip to inquire, quite late. I was at WDW this past October 3-10. I used the online ressie system to book 90 days in advance. I had it search the entire week I would be there and found just ONE reservation for 9:00. I was trying to find a reservation that wasn't too early or too late and that was my only option so I took it.