And your just now looking into this!?!?! Ahhh! :P
Replace your Engine Coolant Temperature Sensor ASAP!!! New ones are brass. Takes about 15 min. Your car has two sensors, you need to replace the one with the 2-wire connector. Do this on a cold engine.
Also, replace your tranny fluid and filter ASAP!. This should be done At least every 12K - 18K miles.
Tranny filter replacement from the top:
http://youtube.com/watch?v=Dfh9HGU3NXM
Please note the fluid MUST be drained before removing filter
ECTS replacement:
http://youtube.com/watch?v=JC0U53w_Htk
NOTE: Dealer is a safer place to buy sensor. $14.50