Standard polo altenator tensioning

[dub-disaster]

I'm going turbo and have got a 55amp altenator from a standard mk3 polo to fit and a standard Engine mount and crankshaft pulley is this all I need isn't there like an arm that mounts between the engine and the top bolt of the altenator with a slot init that's used to adjat the position of the altenator and inturn tension the belt??
This is a shot in the dark but does any one have one of these hanging arums I could buy if not is it a scrappy job??
Any pics of altenator setup on a turbo'd car would be appreciated along with any info
cheers guys

[hayesey]

you need the bottom arm that goes between the bottom of the alt and he engine block which has the adjuster built into it.  Get one from any non-g40 mk2 or mk3 polo.  No pics but it just mounts in the exact same way as it would on any polo