APF is not working in Fedora

uname -a
Linux ***** 2.6.12.4 #2 Wed Aug 10 12:16:00 CEST 2005 i686 i686 i386 GNU/Linux

[root@server named]# /usr/local/sbin/apf -s
FATAL: Error inserting ipt_state (/lib/modules/2.6.12.4/kernel/net/ipv4/netfilter/ipt_state.ko): Unknown symbol in module, or unknown parameter (see dmesg)

[root@server log]# tail dmesg
NET: Registered protocol family 17
kjournald starting. Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 396k freed
input: AT Translated Set 2 keyboard on isa0060/serio0
EXT3 FS on sda3, internal journal
kjournald starting. Commit interval 5 seconds
EXT3 FS on sda1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.