Ok. Please Clairfy exaclty what your saying
You first stated you are putting it on your current machine.
Are you dual booting? (Having 2 operating systems on one computer)
Second you also stated that you wanted a server. Now what are you going to use the server for?
Now With those questions asked I can now answer what I think is your orignal question
You want redhat linux 9.0 You can either buy it or download it. the homepage is http://www.redhat.com