Now, for the fun stuff! Let's remove the top platter first. Remove the six Torx TR6 screws (circled in red - one is behind my screwdriver) in the middle of the platter and then lift the ring (boxed in orange) in the center off. Then, slide the top platter out from under the read/write head (in the direction of the red arrows in the third picture).

Don't worry about being gentle at this point - you've already destroyed all of the data by simply opening the drive up.