Thanks for the quick response.
Solved.
The hint was in my subject line; I was looking for "Shift+F10", a Windows shortcut. I had tried that before, but evidently while in some different mode that responded to no such keyboard combinations.
When "Shift+F10" was the first input after the installation routine put up a Windows screen, I got a command prompt. Once such time is after "Press any key to boot from CD or DVD", then pressing a key for a VMware screen.
This requires persistence! It also rewards it, thank goodness!