If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
 
Linux server3 2.6.5 #2 SMP Sat Feb 14 01:52:40 CET 2004 i686 unknown unknown GNU/Linux
 
Gnu C                  3.2.2
Gnu make               3.80
binutils               2.13.2
util-linux             2.12
mount                  2.12
module-init-tools      0.9.10
e2fsprogs              1.32
xfsprogs               2.6.0
quota-tools            3.10.
Linux C Library        2.3.1
Dynamic linker (ldd)   2.3.1
Linux C++ Library      5.0.2
Procps                 3.1.9
Net-tools              1.60
Kbd                    1.08
Sh-utils               5.0
Modules Loaded         raid5 xor md ipt_LOG ipt_limit ipt_state ip_conntrack iptable_filter ip_tables md5 ipv6 bridge ns83820 3c59x