My wife recently came back using AP
My wife returned from India on June 14 using AP. Her AP (mine also) had 3 sheets, two with photograph and one without. At Zurich, airline officials took away the one without the photo.
At the port of entry in the US, the immigration officer was unhappy that they took away one of the AP sheets (in his opinion they should not have). He advised my wife not to do that next time and stamped the AP/I94 and let her through. Did not check or request any document other than AP and passport.
Incidentally, the AP was expiring in September, but the new stamp on I94 is valid for another year i.e. until June 2003.