Be specific, so we can better help you out.
What brand/model supercharger is this? What car did it come off of (if it came off a car).
You seem like you are very unexperienced with forced induction and I would highly suggest you steer clear of it until you do some more research. Any installs of a supercharger on our cars is all custom work. Requiring custom machined/welded brackets, custom piping etc...
Yes it will mess with your A/F ratios, which is why you need to get a new FP, injectors, and some sort of fuel management (FMU, Apexi S-AFC, standalone engine management).
btw, here is a picture of my new supercharger which is getting installed onto my car. ALL custom work.
http://www.squirrelsw.com/supra/eatonm90.jpg
http://www.squirrelsw.com/supra/eatonm90girl.jpg
And no, it doesn't work like a Turbocharger. A turbo is spun when exhaust gasses pass over a turbine which spins a shaft connected to a compressor wheel/fan. A supercharger is turned by the belts and pulley's on your car.