Virtual Playing Orchestra

The instructions say to download the small SFZ file. Does that refer to the file size?
I tried one with the wav library files and it worked. Then I deleted everything and re-installed the wav files and the other sfz file, rescanned vst’s and it worked.
I’m confused about the difference.

Also, ALL of the instruments show up in the MidiGuitar instruments window. Should there be a main interface such as in the other included synth’s or is this what it should be?

every sfz instrument shows up as a separate instrument in our chooser, that is correct.