Hi ! first of all, thks for sharing this great theme !

I Got some problems to understand how the navigation works ...
You can have a look to my website here : http://lecoledumicroenbois.com/
I want something really simple. A home page with some Excerpt of my last posts. A contact page with really "basic" informations ...
My probleme is that the posts always appear => on contact page, on each posts ...

Could you please give some advices about how can i fix my problem ?!

Thks & have a nice week

Pierre

Two questions
1) if you edit your contact page, what do you have there?
2) at dashboard->settings->reading, what is the option 'front page displays' set to?

It sounds like your issues are not theme related, but an understanding how Wordpress works and how to create your layout so it does what you want.