proftp.conf med mysql support

hejsa jeg har fået sat ptoftpd 1.2.1 op og den kører nu nogen lunde
meen jeg har et problemmed proftp.conf
jeg har fulgt denne artikkel
http://www.braindump.dk/dk/wiki/?wikipage=AvanceretFTP
og har sat min proftp.conf til at se sådan her ud, meen den tjekker ikke i databasen men kun i brugerne som er oprettet på linux why ???
proftp.conf ser sådan ud

# This is a basic ProFTPD configuration file (rename it to
# \'proftpd.conf\' for actual use.  It establishes a single server
# and a single anonymous login.  It assumes that you have a user/group
# \"nobody\" and \"ftp\" for normal operation and anon.

ServerName                      \"ProFTPD Default Installation\"
ServerType                      standalone
DefaultServer                  on
DefaultRoot                    ~
# Port 21 is the standard FTP port.
Port                            21
# Umask 022 is a good standard umask to prevent new dirs and files
# from being group and world writable.
Umask                          022

# To prevent DoS attacks, set the maximum number of child processes
# to 30.  If you need to allow more than 30 concurrent connections
# at once, simply increase this value.  Note that this ONLY works
# in standalone mode, in inetd mode you should use an inetd server
# that allows you to limit maximum number of processes per service
# (such as xinetd)
MaxInstances                    30

# Set the user and group that the server normally runs at.
User                            nobody
Group                          nobody
sqlconnectinfo                  ftp_login:localhost:3306 bruger password
SQLUserTable                    ftp_users
SQLUsernameField                handle
SQLUidField                    uid
SQLGidField                    gid
SQLPasswordField                password
SQLHomedirField                homedir
SQLLoginCountField              count
SQLAuthoritative                on
sqlauthtypes                    plaintext

SQLLogStats                    on
#SQLLogHits                    ftplog
SQLLogDirs                      fcdir
SQLLogHosts                    fhost faddr    ftime

RequireValidShell off

# Normally, we want files to be overwriteable.
<Directory /*>
  AllowOverwrite                on
</Directory>

er der nogen der kan se hvad der skulle være galt ???