Thanks mate
I think i have 3 pulleys!
Well i have loosened the tensioner at the very bottom, and the bolt at the top which looks like where the wuhole thing swivels from, so ther is another bolt on the back, between the sump and the pump? I did notice this had a grove so it looks like it can move between this grove! is this correct, anything else?
btw looking at the power steering belt, it is around a third of the size of the alternator belt, so will have to take this back to gsf for them to get me the right one!