Just compiled and installed proftpd 1.2.10 in my FreeBSD 5.3 smoothly.
But the anonymous login is always unsuccessful, with the error: 530-Unable to set anonymous previleges.
I have added user "ftp" and group "ftp" into the system ("pw groupadd ftp" and "pw useradd ftp -g ftp"). But neither "anonymous" nor "ftp" can log into the server. :(