Pianissimo did you follow the instructions?
You should have a folder where you decompressed the Kontakt library. In that folder you should have the following sub-folders (check these are folders and inside there are different wav files):
- Blanchet-Jeu 1 Samples
- Blanchet-Jeu 2 Samples
- Blanchet-Luth Samples
And in that same folder you should also have my three files:
- blanchet-jeu-1-cg.sfz
- blanchet-jeu-2-cg.sfz
- blanchet-jeu-luth-cg.sfz
To summarize, you have a folder containing my files and also containing sub-folders with wav files.
You open Sforazando, click where it says "Empty" and choose "Import", then select one of the files, e.g. "blanchet-jeu-1-cg.sfz" and it should load. If that still doesn't work, then unfortunately I don't know 🙁 It works for me...
