Josh, send me your phone number by pm please.
The (your black) interior trim will have some clips on the back that helps hold the headliner on. Also you have some very small clips that clamp it on along the sides, 3m holds it in place as well up front of the sun visors, on the sides for now, you can get little clamps to hold it on till the 3m dries. And on the bows, you have little cups I believe the bows go into. unless it's challenger the bows go into the cups, cant remember, but if its cups, I can send you some as well.
Send me your # I'd like to ship tomorrow or wed........ALAN