OK bare with me, I am on a temporary computer, and have no way to edit these pictures, so I will try to explain them.
The left side of the picture is the front of the frame. This is how the sear is positioned in the frame. Those front little legs sit against the tabs in the next picture.
The left side is the front of the frame. The silver is the trigger(in this picture there is no safety installed). Just behind the trigger(to the right of the picture) you can see little ledges (tabs), the front legs of the sear spring sit against these.
The left side is the front of the frame. Here is a top view of the sear installed.
Bottom of picture is the front of the frame. Here is the bottom view of the sear installed.
Hope these help.
Ignore the dirt in the callouses of my hands, been working in my garden