ispconfig on redhat 9

I downloaded ispconfig and than I read the instructions to istall it.

Here is the instructions:

Code:

Log in to your shell as root.
Unpack the ISPConfig-archive

tar xvfz ISPConfig*.tar.gz

and change to the directory install_ispconfig:

cd 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:

./setup

After I put ./setup it tells me that the operating system is not supported. If I change it to fedora core 4 will it work?