How & Where is SAPinst ?

I am going to use SAPinst to export my existing SAP R/3 Enterprise (Oracle 9i, HP-UX) and import it into a new machine with Oracle 10g and HP-UX.

Now I have the following questions :

(1) Which DVD should I use first ?

(2) Is SAPinst a GUI program ?

(3) If yes, do I need to install X-Windows on my HP-UX ?

(4) Or it has already been installed ?

(5) Or, I should put the starter DVD on a Windows machine and then logon the HP-UX machine remotely ?

(6) Or SAPinst is not the best choice and you have some better ideals ?