Trouble with LDAP authorization modul

hey folks,

I've got some problems with the ldap authorization modul for drupal7.

short background: I upgraded from d6 and the old modul wasn't compatibel with d7 so I install the ldap modul V7.x-1.0-beta10.

I got the login via Ldap back to work but I'm incapable to configure the role mapping through the authorization module. Also the guy who primarily configured the ldap server left our association and I can't reach him. Futhermore I' a real beginner with ldap and it's more trail&error for me than knowing how it works. So I need a hand getting this sh** back to work.

The authentication works via the classical ou=People,dc=domain,dc=com strin and the username attribute is uid.

I don't how the role mapping was configured under d6, I was never used to have a closer view to it, but the configuration for the apache webserver looks like that:

Are this enough information for anybody to help me?