Thanks for the reply.
Forgive my ignorance of Macs here. It seems that all I need to tell the user to do is double-click on the Remote Support icon when the application install prompt comes up. This may have been glaringly obvious to a Mac user, but I am not one of them.
Thanks again for the reply. Hopefully the topic can help someone else down the line that is as unfamiliar with Macs as I am… or perhaps it will just give avid Mac users a good justification to face-palm.