When creating a shared FTP folder on Mac OS X, the uploaded files are only accessible by the user who uploaded them. This isn’t much help if there’s a shared ftp upload folder.
There’s fortunately an easy solution:
Create, or edit, /etc/ftpd.conf
Insert the following line into the conf file:
umask all 022
Save, and restart FTP – turn file sharing off and on again in the Sharing prefpane. Make sure share by FTP is re-enabled for the folder in question, when I tested this on two machines this arvo, both machines had unticked “Share via ftp”