Installing Binary version Grass4.1

I am trying to install the binary version of Grass4.1 on our SUN
SPARCstation 2 (with SunOS 4.1.1 Rev B). I got all the files in
the directory "grass/grass4.1/release/binary/sun4" from Grass
ftp site "moon.cecer.army.mil". According to README file, I can
use "cat [dist] | zcat | (cd [destination]; cpio -icdmv)"
to unpack all the cpio format files. I got certain error messages
when I tried to do so:

cat bin-sun4.cpio.Z.0001 | zcat | (cd /n/grass4.1; cpio -icdmv)

gmake4.1
bin/xclip4.1
bin/xgexec
cpio: Can't read input: : No such file or directory

cat bin-sun4.cpio.Z.0002 | zcat | (cd /n/grass4.1; cpio -icdmv)

zcat: stdin: not in gzip format
cpio: Can't read input: : Error 0

According to the README file, I should change the value of GISBASE
in following files:

  grass4.1
  xgrass4.1
  etc/monitorcap

But I didn't find any files by that names at above FTP site. Can
anyone out there tell me what is the problem?

Thanks.

--Wenli
Department of Geography
University of Nebraska-Lincoln
yang@spot.unl.edu