If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
 
Linux tor 2.4.21-rc7-ac1 #2 Thu Jun 12 21:57:29 BST 2003 i686 unknown unknown GNU/Linux
 
Gnu C                  3.3
Gnu make               3.80
util-linux             2.11z
mount                  2.11z
modutils               2.4.22
e2fsprogs              1.28
jfsutils               1.1.1
pcmcia-cs              3.2.3
PPP                    2.4.1
Linux C Library        13 23:33 /lib/libc.so.6
Dynamic linker (ldd)   2.3.2
Linux C++ Library      5.0.4
Procps                 3.1.6
Net-tools              1.60
Kbd                    1.06
Sh-utils               4.5.8
Modules Loaded         snd-mixer-oss ipt_MASQUERADE ipt_multiport ipt_LOG ipt_state iptable_filter ip_nat_irc ip_conntrack_irc ip_nat_ftp iptable_nat ip_tables ip_conntrack_ftp ip_conntrack radeon agpgart usbserial keybdev hid printer snd-intel8x0 snd-pcm snd-timer snd-ac97-codec snd-page-alloc snd-mpu401-uart snd-rawmidi snd-seq-device snd soundcore ipv6 ds yenta_socket pcmcia_core rfcomm af_packet l2cap bluez st sr_mod sg mousedev joydev evdev input usb-uhci ehci-hcd usbcore raw1394 ohci1394 ieee1394 e100 ide-scsi ide-cd cdrom ext3 jbd loop reiserfs