You can't request where you sit. It has been discussed many times as to the hows/whys of where you end up sitting. Some say it is based on when you make your reservation, others say it is when you actually pick up your tickets, yet others say it is based on when you check in at the podium. I'm not sure there is a definative answer out there. I booked my Oct '06 reservations in Nov'04, I'll pick the tickets as soon as humanly possible once I check in, and then we will be checked in as early as we can.
Since we are celebrating two young ladies turning 13 that week, we would like to be as close to the stage as possible.
Having said all this....when we were there in '03, we had to rebook since Hurricane Charley shut down Ft. Wilderness. So, we had only 3 days in advance. We ended up in the balcony, on the side. It really wasn't all that bad. It was nice to just turn your seat, they are swivel seats, and watch the show with nothing in front of you.