[ns] problem with ns-2.1b6

[Montavont Nicolas <montavont@clarinet.u-strasbg.fr>]

Hi,
I try to install ns-2.1b6 on FreeBSD 4 and I have the following error
when I type ./install :

c++ -c -O2 -I. -I/usr/local/ns-allinone-2.1b6/tclcl-1.0b9
-I/usr/local/ns-allinone-2.1b6/otcl-1.0a5
-I/usr/local/ns-allinone-2.1b6/tkbox/include
-I/usr/local/ns-allinone-2.1b6/tclbox/include -o my-endian.o
my-endian.cc
my-endian.cc: In function `void ToOtherEndian(TEntry *)':
my-endian.cc:42: conversion from `short unsigned int' to `enum method_t'

my-endian.cc:45: conversion from `u_4bytes' to `enum method_t'
my-endian.cc:48: conversion from `short unsigned int' to `enum
protocol_t'
my-endian.cc:51: conversion from `u_4bytes' to `enum protocol_t'
*** Error code 1

Stop in
/usr/local/ns-allinone-2.1b6/ns-2.1b6/indep-utils/webtrace-conv/dec.
*** Error code 1

Stop in /usr/local/ns-allinone-2.1b6/ns-2.1b6.
Ns make failed!
See http://www-mash.CS.Berkeley.EDU/ns/ns-problems.html for problems

I need this version because I want to install CIMS..
I found source at <http://www.isi.edu/nsnam/dist> and I try both
ns-2.1b6 and ns-2.1b6a in allinone version

otherwise, I have another question : where can I find ns-2.1b7, I only
found ns-2.1b7old ans ns-2.1b7a

thanks for help..