Added 28 minutes later
However, nothing works.
I downloaded paint.net, found the desired DDS file in the date, converted it to TGA and PNG, opened it in paint.net, and in each one, I colored part of it white and part of it black to understand which one ignores the color. Then, one by one, I tried applying both files to the model (converted back to DDS), but the effect is still the same. "White spots are not displayed!"
Added 52 seconds later
Maybe the link in the src to the .tga file still had some meaning...