Dwight,
The back of your belt clip spring should look like this:
There is a tab at the bottom of the clip
That fits into a retainer on the holster
The studs on the top of the clip look like this
The two outside studs go into the holes/slots at the top of the holster and when you slide the clip down, the center stud drops into the center hole and locks the assembly in place
The whole mess ends up looking like this:
