If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
 
Linux colins-laptop 2.6.12-colinf #1 SMP Sun Jun 19 12:19:41 BST 2005 i686 i686 i386 GNU/Linux
 
Gnu C                  3.3.3
Gnu make               3.80
binutils               2.15.90.0.1.1
util-linux             2.12
mount                  2.12
module-init-tools      3.0-pre10
e2fsprogs              1.34
jfsutils               1.1.5
reiserfsprogs          3.6.13
reiser4progs           line
xfsprogs               2.6.3
pcmcia-cs              3.2.7
PPP                    2.4.2
nfs-utils              1.0.6
Linux C Library        05 16:31 /lib/tls/libc.so.6
Dynamic linker (ldd)   2.3.3
Linux C++ Library      5.0.5
Procps                 3.2.1
Net-tools              1.60
Kbd                    1.12
Sh-utils               5.2.1
udev                   021_bk
Modules Loaded         edd sg st sd_mod sr_mod scsi_mod nvram usbserial parport_pc lp parport snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_pcm_oss snd_mixer_oss snd_usb_audio snd_usb_lib snd_rawmidi snd_seq_device thermal processor fan button battery ac snd_intel8x0 ipv6 snd_ac97_codec snd_pcm snd_timer snd soundcore snd_page_alloc ehci_hcd i2c_sis96x i2c_core ohci_hcd evdev af_packet pcmcia yenta_socket rsrc_nonstatic pcmcia_core sis900 mii usbcore binfmt_misc ide_cd cdrom dm_mod reiserfs