Downgrade to x9.2 for Mac?

Please, can any Endnote employees help with this? I don’t see why this is unavailaible on the website. I can download the Mac x9.2 updater but it won’t do anything because I do not have x9.1 installed…

I emailed tech support and they directed me to install the x9.2 file for Windows…but I have a Mac and indicated that. Their link doesn’t work…

PLEASE HELP!!! I know I’m partly to blame for not saving the original installation file. Never making that mistake again…but I’ve paid for this and should really be able to downgrade to whatever x9 version I want and need to use.