15mm wrench (I think) on the tensioner pulley, first pulley to the right of the supercharger pulley. rotate the bolt on the pulley, 1 way will loosen the bolt, the other way will rotate the tensioner, take belt off.
Then follow this guide and you will be fine.

How to replace an M90 snout coupler without removing the entire blower

As Bill said, its all about confidence, learning process is key, we all had to start somewhere.

EDIT**** OMG GRAB SOME LATEX GLOVES!!! if you haven't ever changed the Supercharger Fluid, you will not want to get it on your hands... It will soak in and your hands will stink for days. Learn from my fail.