Jetta's have a big enough aftermarket that they must have a couple forums, so I would join one of those and search around as I am almost certain there is someone that has logged that mod with some detail.
But just for something to get you going. I would pickup a repair manual ei chilton's there always good to have around. Also on a car that age it would be wise to go ahead and overhaul the suspension. Your aged stock suspension components would do well with lowered performance springs so be ready replace shocks, struts, bushings, links etc. You will also need a couple of alignments. Get one initially after you work w a warranty. Then at the end of the warranty period usually a couple of months the springs should have had time to settle and then go get the car realigned for free.