Thanks so much, Cat_7, Ronald.
No, there is no extension attached to the MacOS ROM file and yes, this is the same version and build as previous.
What I had done earlier is: I have another older Mac, also with OS 10.6.8 on it, which has SS on it and working correctly. (I still have that.) I acquired another older MacBook Pro (MBP) and installed a large SSD in it. I then transferred all of my files from the first computer to this newer MBP. Sheepshaver worked really great on it, my ancient OS9 apps worked wonderfully fast, all was well. – Except the trackpad.
So, as I mentioned, I replaced the trackpad, that's when a couple of oddities happened: some of my apps thought that this was the first time they were operated on this machine. The clock was off. -Which I guess is normal...
I'm thinking perhaps some part of SS is lost like that...? Should I try a complete reinstallation of SS? (I'd rather not!

) Or maybe I should transfer all of the SS files one by one, from the first computer? Might that work?
Thanks again, sincerely!
~ Gary