What kind of errors (if any) are you getting on the server side? Check /var/adm/syslog. Also try starting up the ftp daemon with logging, i.e. in /etc/inetd.conf change the entry for ftpd:
ftp stream tcp nowait root /usr/lbin/ftpd ftpd -l -L -v
the -l logs each ftp session,
the -L logs all commands sent to the ftp daemon
the -v logs logs other information include what files were transfered, etc.
then restart inetd (inetd -c). Then see if you could reproduce the problem from the client side and then check /var/adm/syslog/syslog.log for any errors.
-Santosh
Life is what's happening while you're busy making other plans
