Ok the K in your vin represents that you have a 3.8K v6. Here is an illustration of where the power steering pump reservior is located.
This will put the fill cap at the back side of the engine on the passenger side of the car. If you look at the back side of the engine you will see two rubber coolant lines going from the engine to the firewall. The pump and reservior should be directly under them. I hope this helps. Sorry I don't have a better illustration.