Years ago I wrote an article on setting up a blind drop FTP server I was searching for some information and ran across an updated article using FTP 7.5. Funny thing I recently setup a blind drop using FTP 7.5 and referred to my article on permissions.
http://blogs.msdn.com/vivekkum/archive/2009/05/10/blind-drop-ftp-in-iis-7-7-5.aspx
btw – here is a Blind Get, I’ve not tried on FTP 7.5, the permissions should be similar.
http://www.iislogs.com/articles/blindget/
Hope this helps
Steve Schofield
Microsoft MVP – IIS
Pondering Thought 