how can I replace the back panel on hotpoint oven BD42SS?

I took off the back panel off to clean the fan and can't remember how to fit it back. The back panel has a hole which fits over the internal light. You then screw the light bulb cover over this and there are 2 pieces of aluminium whiich are curved at the ends and are about 8 inches long. I can't remember where they went and what they screw in to! I would be grateful if someone could send me a diagram or tell me what to do. Thank you.