67 dart headliner

Hey dart 67
I"ve been reading through the old post and im just curious for the bows the front bow points towards the back of the car and the rest of them go to the front. and for the install is put the back on the two barbs then do all the barbs in the front and then go back and put the rest on the back then do the sides and have everything tight but not sure tight then heat it up the get all the riples out of it?
thanks