SW, US and IAO all need atleast a day each. You can buy tickets at the gate or at a discount from us (also avoids long queues).
Fastpass is explained here http://www.park-tickets.com/FastPass.aspx

<blockquote id="quote" class="ffs">quote:Originally posted by big peachy
Need some info please ive booked and paid for the 4 disney pks tickets.Im wanting to do Seaworld and U/S as well. Can these pks be done in one day each pk??.Can i purchase them over ther without to many probs.And oh i nearly forgot the disney fast passes how do they work do i have them with my ultimate pk tickets deal.
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