No pam_unix.so on Mac OS X 10.7.1 server

Webmin and usermin need pam_unix.so to let the created accounts, in virtualmin, access them.

Mac OS X 10.6 and 10.7 are using OpenPam and by default pam_unix.so is not installed.
How can I let my clients login?

Root is no problem while I have a Mac OS X root account. (I used the same name and password while I installed webmin.

The way root has access is by using:
pam_opendirectory.so

But what ever I try I am not able to login as a client, an account created trough virtualmin.

(PS I compiled OpenPam on a second apple comp and moved the compiled pam_unix.so. But no luck)
Invalid login as nameclient from IP address

anyone ?
Pam is loading without errors.
Problem remains that Every account created in virtualmin is not able to login
webmin or usermin (password not found)

therefore I get the same problem while trying to login with mail, password not found.

FTP access is possible, but it is able to use pam_opendirectory.so I guess

Using Mac Mini 2011 i7 quad core Mac OS X 10.7.1 server.

Please some one…