Virtual Hosting With PureFTPd And MySQL and The Perfect Server - CentOS

Tutorial PureFTP contains:

You should already have set up a basic CentOS 6.4 system, for example as described in the first six chapters of this tutorial: The Perfect Server - CentOS 6.4 x86_64 (Apache2, Dovecot, ISPConfig 3).
[...]
cat /dev/null > /etc/pure-ftpd/pureftpd-mysql.conf
​

But pureftpd-mysql.conf file has the data necessary for ISPConfig3, other than for PureFTP.

Example for PureFTP: MYSQLDatabase pureftpd​

Example for ISPConfig: MYSQLDatabase dbispconfig​

and all other.

How to get the functionality of the FTP server with virtual users without taking functionality webmasters ftp accounts ISPConfig?

It is unfortunate that ISPConfig 3 can not add FTP users are limited to the dedicated sub-folder in a folder such as public-ftp folder for each domain.

Ps. Sorry for the lack of knowledge of English.