If you want to remove a fuel pump from the tank of a Volkswagen Jetta 3, you first need to drop the tank. This means the tanks has to be completely removed from the vehicle before the pump can be removed.
I have a 2000 jetta gls, and the power steering fluid tank is located on the p[assenger side in the engine compartment next to the fuel lines and the washer fluid tank, it has a green lid with a picture of a steering whel on it, hope that helps.
This 2006 Jetta press release says that the Jetta has "electro-mechanical steering." That means there is no power steering fluid as is needed for a hydraulic power steering system. Electro-mechanical offers fuel savings, as there is no hydraulic pump that is driven all the time.