If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
 
Linux killian 2.6.16.13-4-default #1 Wed May 3 04:53:23 UTC 2006 x86_64 x86_64 x86_64 GNU/Linux
 
Gnu C                  4.1.0
Gnu make               3.80
binutils               2.16.91.0.5
util-linux             2.12r
mount                  2.12r
module-init-tools      3.2.2
e2fsprogs              1.38
jfsutils               1.1.10
reiserfsprogs          3.6.19
reiser4progs           line
xfsprogs               2.7.11
quota-tools            3.13.
PPP                    2.4.3
nfs-utils              1.0.7
Linux C Library        > libc.2.4
Dynamic linker (ldd)   2.4
Linux C++ Library      6.0.8
Procps                 3.2.6
Net-tools              1.60
Kbd                    1.12
Sh-utils               5.93
udev                   085
Modules Loaded         nfs lockd nfs_acl sunrpc af_packet ipv6 cpufreq_ondemand cpufreq_userspace cpufreq_powersave powernow_k8 freq_table edd snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device button battery ac apparmor aamatch_pcre loop dm_mod ohci_hcd ehci_hcd usbcore forcedeth snd_hda_intel snd_hda_codec ide_cd cdrom snd_pcm snd_timer snd soundcore snd_page_alloc reiserfs fan thermal processor sg sata_nv libata amd74xx sd_mod scsi_mod ide_disk ide_core