Database Problem

[Paul Ryszka]

Hello,
I am using FreeRadius v 1.1.3 (lastest in the cenOS) and everything is
going quite ok but I am not sure how to construct database tables to use
for authorization (I am using MS SQL as a backend) I get the connection
to database and can do queries against it so at this point it is
standard ODBC connection that is working. I cannot choose the right
attributes to put to the database for authentication to happened.
I always get "unknown attribute" no matter if I use "Cleartext-Password"
or "Auth-Type". That are two that I found in various documentation on
the web. Obviously authentication fails.
I would really appriciate if you would be able to tell me how the
simplest (user/password with nothing extra returned back) authentication
can be done using database backend. 
                
Regards
Paul