If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
 
Linux mimi.imada.sdu.dk 2.6.3-7mdk #1 Wed Mar 17 15:56:42 CET 2004 i686 Intel(R) Celeron(R) CPU 2.40GHz unknown GNU/Linux
 
Gnu C                  3.4.1
Gnu make               3.80
binutils               2.15.90.0.3
util-linux             2.12a
mount                  2.12a
module-init-tools      3.0
e2fsprogs              1.35
reiserfsprogs          line
reiser4progs           line
nfs-utils              1.0.6
Linux C Library        2.3.3
Dynamic linker (ldd)   2.3.3
Procps                 3.2.3
Net-tools              1.60
Console-tools          0.2.3
Sh-utils               5.2.1
Modules Loaded         nls_iso8859-1 nls_cp850 vfat fat usb-storage ircomm-tty ircomm irda floppy raw sg st sr_mod sd_mod scsi_mod snd-seq-oss snd-seq-midi-event snd-seq snd-pcm-oss snd-mixer-oss snd-intel8x0 snd-ac97-codec snd-pcm snd-timer gameport snd-page-alloc snd-mpu401-uart snd-rawmidi snd-seq-device snd soundcore md5 ipv6 af_packet 8139too mii ide-cd cdrom loop intel-agp agpgart ehci-hcd uhci-hcd usbcore rtc ext3 jbd