At the command line, type
2qz.sh
and find out what happens.

You should be aware that Intel and Sun chips have different endianness.
If your system is having a problem reading unformatted fortran files
ngc_obscomp.dat
sgc_obscomp.dat
it's probably an endianness problem.
Read HELP.unformatted in the mangle directory.

Alternatively, you can use the formatted versions of these files
ngc_obscomp.txt
sgc_obscomp.txt

These will be used automatically if there is an error reading 
the unformatted files.