If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
 
Linux rodna.cs.fit.edu 2.6.0-test11 #7 Sun Dec 7 01:12:21 EST 2003 i686 unknown unknown GNU/Linux
 
Gnu C                  3.2
Gnu make               3.79.1
util-linux             2.11u
mount                  2.11u
module-init-tools      0.9.14
e2fsprogs              1.34
pcmcia-cs              3.2.0
quota-tools            3.01.
PPP                    2.4.1
nfs-utils              1.0.6
Linux C Library        2.2.5
Dynamic linker (ldd)   2.2.5
Procps                 3.1.14
Net-tools              1.60
Console-tools          0.2.3
Sh-utils               2.0.15
Modules Loaded