on /etc/ftpaccess logging should be log transfers real,guest,anonymous inbound,outbound usually all the uploaded/downloaded files from guest users are not recorded anywhere. BTW just to make it easier to get chrooted guest users adding : guestgroup users would be a nice touch.., after that a "ftp user" could be added to linuxconf easily just making it -g 100 on default (like popusers are created now) and making their home directories end on "./" (ej. /home/foo/./)
after looking at the latest linuxconf seems like now groups 44 (pppusers), 45 (popusers), 46 (slipusers) are being used instead of the old 100 gid. i guess that a new group would be needed to make chrooted guest users to work on linuxconf
Done