Hi again, Peter!
Well, the problem is solved, thank goodness! And that was an easy one...
I got confused about Real Tracks and Styles. Sorry about that! Sadly it took me a few days to discover that.
In the window "Select Style Prototype Style", the drop-down menu at "Disk #" showed for some reason "#10 Rock/Pop". So all the styles I saw in the window were from disk #10, and that ain´t too many.
When I turned it to "Show all styles disk" I got a whole bunch of styles and Real Tracks

The "missing" ones...
Now, I`ve been fooling around a bit with BIAB, and must say that I`m highly impressed with it. In a few seconds I get a full orchestral accompaniment to my songs - and it sounds wonderful!
It annoys me that I didn´t purchase BIAB 10 years ago.
Thanks for all your efforts; I really appreciated that!
Best Regards
Amissima