I believe if you go to the section for vacation details and then to point activity and put in the dates for 2008 and 2010 it will show you the use of points for the three years.
What should be used first and what is used first is sometimes two different things.
It's best to keep track of your points buy checking the Member website before and after you make a reservation. You should also discuss your points with the MS Adviser before the reservation is made.