You will have to setup vmware server on one single machine,
and install 8 virtual servers on top of it. The virtual
servers will run Cent OS 4.3 on it, so you will have to
find a way to download this version and install it 8 times on
this server. The main server will have 9 IPs and you will
have to configure the virtual servers in such a way that
each virtual machine to fully use one of the 8 IPs from
the main server.