Need help with porsche gt photo etch

Hey,
I have the Carrera Gt model and i ordered some Acustion pe for it also. There are some pe parts that I cant figure out where they should go. It is the mechanical/interior parts pe. There are tiny cirlces with some writing on them...I have no idea, and a mesh piece that looks like a radiator front, and tiny rivets. These are the peices I have outlined on the pic below. If anyone has this pe set, please help me out.

http://img83.exs.cx/img83/8126/porchepe.th.jpg (http://img83.exs.cx/my.php?loc=img83&image=porchepe.jpg)

Thanks,
Frank X.