mine didn't even have a screw holding the rotor in, the end of that cap had a shaft that pressed into a hole, when it came loose I just put a bit of glue in the hole and it was as good as new.
yeah, I'm pretty sure it does, Trevor off RWI is selling some and there is a very similar one to what was in fast 5. I tried to post a link up of it before for you but it won't allow me as i'm a noooobie