For those of you who would prefer a picture guide, I found this great guide on gamekult.comThe guide is in french, but it is all pictures, no descriptions so you do not need to be able to speak french to be able to use it. The names of the areas and levels are in french, but it is still very easy to understand as they are in order.
Or if you would prefer a written guide, there is a brilliant one on Gamefaqs thanks to James Novotny.