I am trying to evaluate the groupwise client for possible deployment and cannot get it installed on my server.

Server is running ubuntu 10.04 64 bit

Just trying to install the groupwise client but cannot get it to run ./install this is the error message i get

Extracting files, please wait...tail: cannot open `+42' for reading: No such file or directory

gzip: stdin: not in gzip format
tar: Child returned status 1
tar: Exiting with failure status due to previous errors
[: 35: unexpected operator
Done. Starting install.
sh: Can't open ./clientinst

Need help!