Hi Dave:

Unfortunately Sage only provides the links for the current year product and the prior year up to about March of 2018 in your particular case. We have most versions of Sage 50. We charge a fee for service to obtain a copy of the downloadable Sage 50 2017 Canadian version. Contact us via private message, e-mail [email protected] or telephone 1-866-467-2883 to get a copy.

Hi Dave 

If you have a computer previously downloaded Sage 2017 before you can search the follow locations

C:\Users\Public\Public Documents\Sage Software\Simply Accounting\Downloads\

Or 

C:\Sage

hope this helps