i still can't figure out a good way to verbally explain it.
if you go to the disassembly/ reassembly tutorial, there is a pic right away with everything broken down.
the trigger safety spring is shown there in its correct orientation.
let's divide the spring into three parts. there's the circle in the middle, a basically straight leg, and a very bent leg.
the very bent leg goes into the trigger from above with the bent piece approximating the shape of the trigger.
the straight leg will ride underneath a cross-member in the sub-frame.
it is important that you slide the trigger in from rear to front so that this spring rides under the crossmember.