In my experience file managers often do not display CD audio tracks, particularly if they are encoded as redbook audio (for example I can't see the audio tracks when I use my Secret of Monkey Island 1+2 CD collection, but the music still plays in the game). Hence they might be there, even if they don't display.
Your best bet if you really want to check is to actually create a BIN/CUE pair; the resulting file size should make it pretty obvious what is available.
Just out of curiosity, when you play the game from the actual CD and select "CD Audio" in the setup, what do you end up with?
Thanks again for this upload, I've been hoping for a proper CD image for this game for a while
