intall on ubuntu 6.06

The following packages have unmet dependencies:
usermin: Depends: libauthen-pam-perl but it is not installable
webmin: Depends: libauthen-pam-perl but it is not installable
Depends: libmd5-perl but it is not installable
FATAL - 2006-11-16 17:34:59 - Fatal Error Occurred: Something went wrong during installation: 100
FATAL - 2006-11-16 17:35:01 - Cannot continue installation.
FATAL - 2006-11-16 17:35:02 - Attempting to remove virtualmin repository configuration, so the installation can be
FATAL - 2006-11-16 17:35:03 - re-attempted after any problems have been resolved.
FATAL - 2006-11-16 17:35:04 - Removing temporary directory and files.
FATAL - 2006-11-16 17:35:06 - If you are unsure of what went wrong, you may wish to review the log
FATAL - 2006-11-16 17:35:07 - in /root/virtualmin-install.log.
root@hosting:/home/nagy# dpkg -l |grep libauthen-pam-perl
root@hosting:/home/nagy# apt-get install libauthen-pam-perl
Reading package lists... Done
Building dependency tree... Done
E: Couldn't find package libauthen-pam-perl
root@hosting:/home/nagy# apt-get install libauthen-pam-perl
Reading package lists... Done
Building dependency tree...