installing older nero 5.5 ?

[Lost Soul]

hi i have an older version of nero 5.5 and i also have an updated version for the 5.5. i have the cd, but im not sure as how to instal it to my unattended cd, i was hoping it was just like nero 6.0 but i was wrong its alittle different, has any one instaled nero 5.5 from the instal disc,, if so what all should i do, right now i know the setup.exe file isnt enough,