Download archive of Cubase 4?

Hi all

I originally bought Cubase 4 and have upgraded year on year to version 6.

However, I have a University exhibition to prepare for and they are still running version 4. Unfortunately I cannot locate my Version 4 disc and no longer have it installed. Is there a Steinberg online archive for the installer for version 4?

I seem to remember seeing on the forum a link to an archive for the SX3.1 installer.