The first pisce on the left is for the bolt. It has a screwdriver tip so you can adjust/remove/replace the firing pin in the bolt. The large loop is for holding the bolt body during dis/reassembly. The notches on the side of it are for determining the firing pin protrusion. As long as the firing pin is lined up on the rear of the bolt, it's okay. On the rear of the bolt is a screw, which is actually the firing pin. The screw head should line up with two scribe marks on either side to show it is flush and set at the proper depth.
The little knurled nut is a bore cover. Slide your cleaning rod through it, then insert your cleaning rod into the bore. It protects the crown from getting damaged.
The 2 pieces you have assembled into a "T" are the cleaning rod handle pieces. Take out the pin, insert your cleaning rod end with the holes on the rod and the sleeve lining up. Insert the pin, and you have your handle. Same thing as the SKS/AK cleaning kit, if you're familiar with that.
The last thing is the jag. Screw it onto the cleaning rod, wrap a patch around it, and run it through the bore. Nothing to it!
Hope that helped and not hindered, Dale. Let me know if I made you even more confused or if I helped you out, okay?