If you need help, ftp the file "ftp.anon" from ftp://ftp.math.fsu.edu/pub/solaris/ftp.anon.
ftpd(1M) is nearly complete when it comes to setting up anonymous ftp. It only leaves out /etc/nsswitch.conf. [S2.3]
Additionally, you must make sure that the filesystem ~ftp resides on is not mounted with the nosuid option. This is because the nosuid option also disables the kernel honoring device files which are required in the chroot environment for ~ftp.
For security reasons, it is important that no files under ~ftp are owned by ftp. If they are, anonymous users can modify them.
In Solaris 2.5 and later, you will need to copy /usr/lib/libmp.so.* as well as provide a /dev/ticlts (for wu-ftpd).