I tried that just now...
here is a part of the config:
[VFS]
###
# Default attributes for files & directories
#
# Required Parameters: <filemode> <owner uid>:<owner gid>
#
Default_Directory_Attributes = 777 0:0
Default_File_Attributes = 777 0:0
###
Also site Chmod is on 777:
SITE CHMOD 777
200 CHMOD command successful.
And when i try to upload something as that user it still fails!
PASV
227 Entering Passive Mode (128,95,88,59,5,8)
STOR 1.00mb
550 1.00mb: Permission denied.
Transfer Failed!