Redmine

Hi you all!!

I'm new at Redmine, and I'm testing it. I thinks it's a great tool but I have found some problems at adapting it to my system.I would like to make 'on the fly authentication' so I can interact with our corporate's active directory. I don't know what am I doing wrong; I've reviewed the forum unsuccessfully, altought the conexion test is ok. This is my configuration :

Name active directory
Host 192.168.1.X
Port 389
Account MyDomain\UserName
Password
Base DN DC=host,DC=CORPORATIVEDOM
On-the-fly user creation YES
Attributes
Login sAMAccountName
Firstname givenName
Lastname sN
Email

I've put email field as an empty field because our active directory is filled only with username and password. The way we authenticate at our company is only in the format " DOMAIN\USERNAME "; do I have to put CN=USER and DC=ORG)? And what about the Athentication Configuration's fields :

Authentication required
Autologin
Self-registration
Lost password

Thanks in advance!