Here is the order I put the camera back together
after the top cover was on.
Install the side door that covers the input/output
stuff. Remove the little cover cap over the Flash Port
and set it aside for a bit.
Next I did some more cleaning. The LCD screen and the
inside of the glass on the back cover of the camera. Again
keep your finger off. Then I plugged the ribbon cable
from the back of the camera into its connector. Wiggle
the back until you get it back on, it has to tuck in under
the cover on the right side and match up with the side
door on the opposite (left side) of the camera.
I have not mentioned that you should be putting some screw
in to hold things. My practice is to never tighten screws
until I have things in place.
Then I put on the bottom plate and the eye-piece.
Hope all of the above is clearer than "Mud". If not give
me an Email.