On my system, installing wu-ftpd runs /usr/sbin/addftpuser, which puts the shared libraries in place and "ls" works.
wu-ftpd has features not present in the normal ftp daemon. Some people like
them, some don't. Most used feature is "get directory-name.tar", which runs
tar on a directory and retrieves the output. It can also gzip that tar before
retrieving it.
Bruce
