Downloading Old Versions - Needing Publisher v16 Installer

Hi all,

I have an old Lectora 16 license, and would like to hand this to a new starter on our team to learn the basics of Lectora. I still have the key but no installer file.

ELB support were less then helpful... I know that v16 is no longer supported but they were unable to provide the installation file and instead pointed me here:

Does anyone know of a place I can still download v16?