Barbara,
Thanks for taking the time to respond to my query — I appreciate it. Looks like I did a baaaaad thing. The last time I replaced an iMac (2008) was when its power supply died, and the Apple store transferred everything to the new iMac— including whatever PE version that I was using at the time — without any drama. Now I know. I never would have found this procedure on the Adobe site. I’ll give it a try this weekend.
Dick Fejfar
P.S. When I installed PE version 12 and didn’t like it, I found your instructions to disable interactions with Adobe. Thanks for that, too.