Installation fails...

i’ve tried to install Virtualmin on Ubuntu 10.04 and Debian 6, and i’ve got this error, what could be?

Configuration file `/etc/apache2/suexec/www-data’, does not exist on system.
Installing new config file as you requested.
dpkg: dependency problems prevent configuration of postfix-pcre:
postfix-pcre depends on postfix (= 2.7.1-1+squeeze1); however:
Package postfix is not configured yet.
dpkg: error processing postfix-pcre (–configure):
dependency problems - leaving unconfigured
Processing triggers for python-support …
Errors were encountered while processing:

FATAL - Fatal Error Occurred: Something went wrong during installation: 0
FATAL - Cannot continue installation.
FATAL - Attempting to remove virtualmin repository configuration, so the installation can be
FATAL - re-attempted after any problems have been resolved.
FATAL - Removing temporary directory and files.


Solved using this: