Anonymous FTP is activated as a feature when you setup a domain. The default settings only permit vistors to download files placed there by the domain owner. This is the most secure configuation and the only way we will support it.
If you wish to adjust the configuration files on your own you may change the default setting to allow any vistor to upload or download files with a domains anonymous FTP. This is a large security risk and you should not do this unless theres no other alternatives.
In the domains etc directory located at
/home/virtual/userid/etc
you will find the proftpd.conf file which can only be edited as root user. Open the file with the editor of your choice and at the bottom of the file you will find the anonymous FTP settings: