If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
 
Linux camelot 2.4.3 #4 Wed Apr 18 15:09:02 CEST 2001 i686 unknown
 
Gnu C                  2.95.2
Gnu make               3.79.1
binutils               2.10.0.33
util-linux             2.10q
modutils               2.4.2
e2fsprogs              1.19
PPP                    2.4.0
isdn4k-utils           3.1pre1a
Linux C Library        x    1 root     root      1382179 Jan 19 07:14 /lib/libc.so.6
Dynamic linker (ldd)   2.2
Procps                 2.0.7
Net-tools              1.57
Kbd                    1.02
Sh-utils               2.0
Modules Loaded         sb sb_lib uart401 sound soundcore isa-pnp af_packet hisax isdn ipchains ntfs