Idk why two belts come with the kit, but count it as a blessing. The movie accurate belt is labeled A, and the rivet covers are cut out from one of the D labeled buttons. The other D is a side panel ab button for a TD.
C are the shoulder straps for a TD
G is the screen accurate ab panel(you just cut off the excess, see my build) and E is the movie accurate side ab panel buttons(also will need to be cut out to size)
H and I go with belt B(i dont know why they come with fwo different sets)
F is another TK ab button(your kit should have came with round metallic bolts(9 of them, also with nuts)