Hi all. My sis went to WDW in March 2004 & bought 4 day PH but only used 3 days. They're planning another trip in Nov. or Feb. of 2005 & she's wondering if she can convert the PH to an AP since its got 1 unused day or if she had to do that at the time she was using the ticket originally. I've checked the Disney site but can't seem to find any info on converting passes. Can anyone help? Thanks!