Did you run tar xvfz ISPConfig-2.2.32.tar.gz
from the desktop or from the tmp directory?
The instructions from ISPConfig.org:
Log in to your shell as root.
Unpack the ISPConfig-archive
tar xvfz ISPConfig*.tar.gz
and change to the directory install_ispconfig:
In this directory please check the file dist.txt and see if the values given there suit to your
Linux installation (they should be suitable for standard installations). If you change any
values please be sure not to change the format of the file.
Then start the setup-script from there:
Did you verify that directory install_ispconfig