error import sale.order : state blocked

Hello,
I succeed my import from V5 to V6. Just some troubles. The most important of them : when i import account.invoice or sale.order, state is blocked !
How can i resolve this problem?
Thanks for your very good job.
Regards
Jean
I succeed my import from V5 to V6. Just some troubles. The most important of them : when i import account.invoice or sale.order, state is blocked !
How can i resolve this problem?
Thanks for your very good job.
Regards
Jean