2002 xle timing belt

Hi
  I have a 2002 XLE v6 with abou 57,000 miles on it. The owners manual state that the timing belt shouldn be changed at 90,000 miles or at 72 months.  With the low mileage that I have should I have the belt changed soon? Also about how much should I expect to pay for the repair?  Thanks for your help.

 you should be ok till 90k, but if you want to be on the safe side i would do it at 72months. the cost should be around $400 with drive belt and crank seal.