Since you posted essentially the same question on this forum with two new threads, I've merged the threads into one.
Did you buy the car from a dealer? If so, they should be able to provide you with the code. Even if you didn't buy if from a dealer, if you swing by the local Ford dealer where they aren't extremely busy they may provide you with the code at no charge.
If you have access to either a dealer scan tool or a professional scan tool you can pull the code from the keyless entry module over the OBD-II port. Otherwise, there should be a sticker affixed to the outside of the keyless entry module with the 5-digit code.
As tripletdaddy suggested, you should try using the keyword search for keywords such as "keyless" or "keypad." I don't recall anyone posting specifics for the 2008 model year, but it's probably in a location similar to other Taurii.
-Rod