Glad you got things figured out. Was away for the weekend and just caught up this morning.
It looks like a lot of your grief may have been caused by case-sensitivity in Linux. You wrote this back on page 1:
Here is exactly, letter for letter what I did and typed perhaps you can spot the mistake I made:
I opened a terminal window and typed in:
(Note: I'm the only user so can't get mixed up with other users)
These directories should have been called System and ScreenSavers. Please note the capital S in System and the two capital S's in ScreenSavers. This is very easy to overlook and was probably the cause of your troubles early on.
Again, glad things work now, but this is something to remember for future forays.