Joomla Auto-installer won't work with sample_data

Hi I have been trying to get the Joomla script to install under Virtualmin with my sample_data.sql. If you install Joomla manually you get a prompt to use this file. But with the auto script installer it's not working. I even tried placing the files in the installation/sql/mysql folder, but I just cannot get it to work.

The reason I want the Virtualmin installer to control Joomla is because the interface works the same and when installed manually, things start acting funny.

Any help is appreciated.

Thank you, -Dave