Hi:
The file that you need to be seeing is the amd.sata.inf file in the WB (letter B)64A file.
Or in the SB7xx folder the amd.sata.inf file in the W764A file.
The installation program can only read setup.inf files -- Setup information.
I do not understand why it doesn't see the setup.inf file and only sees the file you posted in your last screenshot.
I have attached the file that it needs to be seeing.