They are real, and yes, they are different planes. The top shot shows an early 1 seater that has been field modified to carry a rear gunner. The lower shot shows a later Il-2 with a factory placed rear position. Note the damage on the lower one, such as the hole in the wing. Oleg Maddox says that they are trying to do dynamic damage where the shell actually hits.
Sisu
[This message has been edited by Karnak (edited 05-23-2000).]