as already stated, these have been in your account for some time.
i have an oct UY and my 2010 pts are available right now for stays from oct 1, 2010 through sept 20, 2011. my booking window for oct 1, 2010 doesn't open till nov 1, 2009, but the points are there already.
if i had wanted to use my 2010 pts to book the first week of december 2009, i could have called as early as january and borrowed those 2010 pts to book my home resort. they were already available.