Yes, I took them several years ago. Interestingly, the original pilot of "Miss Velma" came to the museum and brought his wife, Velma. It was a neat visit.
The standard P-51 does not have a wood floor, but the TF-51 does. It has dual controls so the person in back can fly the plane, too. That's the reason for the high tail ... the added side area of the larger canopy on the TF-51.