How to download Sage CRM 7.3, or is it Sage CRM 2017?

SOLVED

I'm attempting to setup a test system of Sage CRM with the possible goal of eventually integrating it with Sage 100c Advanced 2016. The GAP document says that Sage CRM for Sage 100 2016 can be either 7.3 SP3 or 2017 R1 or R2. It also mentions 7.3 SP2 or 7.3 SP3 with hotfixes. So some poking around on the Partner Portal shows that there are links to download Service Packs for 7.3, which I have done, but all the links to download the actual 7.3 product are dead links to the SageCRM Community websites (at least they don't work for me, although I just now registered for the site).

A little poking around shows that maybe 7.3 and 2017 are the same (or very similar) products. It appears I can download 2017, but not 7.3. Can I really use 2017 R2 with Sage 100 2016? I've downloaded 2017 R3, still looking for R1 or R2. Can I use R3?

Thanks