All you need to play is in the book, but if you would rather print a character sheet than use a copy machine, the character sheet is provided here.
Grace à Damien Rahyll, il y a aussi une feuille de personnage pour les joueurs francophones!
There is also, regrettably, an errata.
If you need assistance or have ideas to discuss, Jacques van der Merwe has started a great Whitehack Appreciation Society. It was previously on G+, and the old version of the community has been archived at whitehackrpg.blogspot.com.
Feuille de personnage 1e (grace à Antoine Fournier)