Here is your problem. The friction disk is the disk that contacts your flywheel, and the pressure is what bolts down on top of it. It is completely normal to have to torque the pressure plate down. If it was flat with no effort, the clutch would not be able to engage. This is how it is with the clutch pedal out. If you're certain it's in the right way, then there's no problem. You can see if it's engaged by putting it in gear an turning the engine over with the crank pully bolt. The axle will spin. Spinning a wheel won't work because of how the differential in the tranny works. See
http://www.howstuffworks.com/differential.htm Hope this helps.