I'm having problems with my moonroof. I will open in the lowered retracted position and in the tilted rear up position. The problem is it would not fully close. When going into the closed position (from the lowered retracted rear position) it stop with about 1 1/2 inches remaining and go up into the locked sealed position. I found broken piece in the rear and would like some advise at getting it fixed. [PLEASE SEE MY PHOTOS]

a. Is this something I can do myself?
b. What is the broken part?
c. How do you remove this type of moonroof?
http://files.automotiveforums.com/gallery/watermark.php?file=/503/380286moonroof1c-med.jpg
http://files.automotiveforums.com/gallery/watermark.php?file=/503/380286moonroof1b-med.jpg
http://files.automotiveforums.com/gallery/watermark.php?file=/500/380286moonroof1a-med.JPG
http://files.automotiveforums.com/gallery/watermark.php?file=/500/380286moonroof1d-med.jpg