ftp security in iSeries Navigator

["Jim Franz" <franz400@xxxxxxxxxxxx>]

New V5R3 system (no migrate from 5.2 or 5.1) it looks like default in 
FTP security when I first brought screen up is:
iNav right click server>Application Admin>Host Applications>TCP/IP Util>FTP...
Normal users get "default access" (which i have no idea what that means, and 
help text is useless)
All object users are not checked, and I assume therefore not authorized?

My current problem is FTP orginating in system to other systems works fine.
FTP from my pc to i5 will connect, logon, change dir, submit remote cmds, but 
cannot "put" data
to i5 ( going to qsys.lib file sys). This same script on my pc has run for 
years on earlier as400.
No user exit pgm on i5.
Qaudjrn shows everything is ok up to a entry for profiile swap and then no more 
entries.
No job log (4  00 seclvl) errors. 
No changes in firewall when new system added.
Any ideas?
Jim franz