You were right DrByte, i delete a 'checkout.php' file for the One Page Checkout and it loaded the checkout_shipping page.
So good ! one step further...

But now (unfortunetly) it says that the item is too large to be ship ??
It's only 25cmx35cm... What would cause this ?
I have only one shipping module installed (Canadian Post) and i did'nt have this problem before...


Thanks exactlyhow, but all my php file seems to be ok...