when you are looking at the engine, the first half of the PCV hose is this.
it's a mess in there, but here is another view.
And that is where most people think the valve is, but is on the underside of the intake manifold! right here... see that little white bit of plastic way down there? the one you have might be blue or black and dirty.
you have to get to it from the drivers side of the engine compartment, with your long skinny arm, reach under the intake manifold till nearly your whole arm is in there, you will scrape your hand and arm up and everything is hard to see, if that is not the case either your arm is really skinny or you have the wrong part.