iptables config problem in Fedora 11

[Edward. S. P. Leong]

Dear All,

When running the following function ( they are good for working in FC9 ) :
modprobe ip_tables
modprobe ip_nat_ftp
modprobe ip_conntrack
modprobe ip_conntrack_ftp

error output :
[]# modprobe ip_tables
WARNING: Deprecated config file /etc/modprobe.conf, all config files
belong into /etc/modprobe.d/.
FATAL: Module ip_tables not found.
[]# modprobe ip_nat_ftp
WARNING: Deprecated config file /etc/modprobe.conf, all config files
belong into /etc/modprobe.d/.
[]# modprobe ip_conntrack
WARNING: Deprecated config file /etc/modprobe.conf, all config files
belong into /etc/modprobe.d/.
FATAL: Module ip_conntrack not found.
[]# modprobe ip_conntrack_ftp
WARNING: Deprecated config file /etc/modprobe.conf, all config files
belong into /etc/modprobe.d/.

Is there any solution for it ?

Thanks !