Oh, after few months, it seems being working...
I always got the message:
"vianaj, you do not have permission to access this page. This could be due to one of several reasons:
1. Your user account may not have sufficient privileges to access this page. Are you trying to edit someone else's post, access administrative features or some other privileged system?
2. If you are trying to post, the administrator may have disabled your account, or it may be awaiting activation."
I even tryed to get a new activation code...
Or contact the administrator but I always got the message:
"**YOUR MESSAGE WAS NOT SENT**"
Well, I hope it will work now! I was almost giving-up!