Problem with Virtual Hosts on virtualmin.

Hi,

One of my friends accidentally uninstalled virtualmin on a server. So he went ahead and reinstalled virtualmin and the re-installation went just fine. Now here's the problem: All of the websites that were hosted on that server with virtualmin are up and running (since httpd.conf, the /home directory and other important files weren't deleted), but when we login to the virtualmin web interface there are no virtual hosts for the websites that were hosted on vitualmin. So how can we add the virtual hosts back to virtualmin? We don't have backups for the virtual hosts, so we don't really know how we can add the virtual hosts back to the web interface without messing up the websites that are up and running.