Headliner Install Questions

Ok, this is what is contributing to my confusion. From what I could see from the pix in the factory service manual, the bow clips you show fit into a square shaped depression in the roof rail, kinda like a J-nut. Am I good so far? Mine (and the bow donor car) don't have those depressions. The bows have a reverse bend hook at the very end that fits into 1 of three holes at each site that are arranged in a triangle of varying heights. My description is probably confusing and I can't post any pix until tomorrow if that helps.