Installing Xvfb on Z/OS for SAP

Hi,

Can anybody tell me the command to install and configure Xvfb for Z/os on SAP.

Actually we are trying to develop some java application for which Xvfb need to be installed on Linux box and we have Z/Os linux mainfram.

I have already downloaded the RPM and extraced under /usr/bin

now whn i say "install Xvfb" it gives error like cannot execute binary file.

Can anybody give me details, how can i go for this ???

Regards