The other day I bought a nearly standard 2 wheel drive sapphire cosworth

It has just an exhaust system, clear indicators, 4x4 rear lights and grooved disks. Today I found a superchips stage 1 chip which I have now bought, what do I need to do to install this and set the car up? Do I plug it in and it controls the boost or do I need to set the boost?
I'm new to cosworths so please bear with me