Welcome to the community
As you are an enterprise customer please try raising a request to technical team to get the requested msi files for older versions as needed
Also you can try checking the help on right top of orchestrator and check the product downlods option to see if it has the required msi files
Hope this helps
Cheers
ashokkarale
Yoichi
postwick
Anil_G
kishan.savaliya
Laura_Hubbard
Tselisehang_Molebatsi
Byrnecut
Lahiru.Fernando
wahyumrizqi