67 headliner ...puzzled

Hey people. My 67 Dart now has the windshield out. I nticed teeth along the front underside. Does the front of the headliner attach in there as well as up under the drip rail above doors? I have found a few small pieces of what appears as fabric there.Sorry one more..The sides of the rear window..Sail portion...I think its called is there supposed to be a board of some sort there to..........And whats with the wire hanging out above the rear window? Of course all help is most greatfull..........Thanks Mr. no nothin................:homework: