Apart from the Nine Year Ago levels, do you have a list of areas and cutscenes that are exclusive to the PS2 version ?
I saw that the "PS2 version of A Man of Influence Scene 3 (which is Scene 5 in that version) has a secret underground shooting area, and the pen dart weapon that was added."
"In the PS2 version, Baron Dumas' residence features an extra hidden room on the left side, accessible by distracting the guard dog and lockpicking the door leading to the elevator. Archer will come across some storage room, a safari shooting range (With a Sportsman EX Crossbow nearby) and a normal shooting range (with a Braun 9mm Parabellum nearby). Taking the last elevator will bring her back to the main lobby, coming out of the large statue."
"There's also a secret room beneath Baron Dumas' villa, when you go to the right behind the hedges in the courtyard. There's another dog in a kennel where you can use your robo-poodle to get past. In the basement, there's a hunting/shooting range with targets and cages.
And of course the '9 Years Ago' flashback levels, with 3 scenes in which Cate snatches purses, cracks safes in a pub and steals a diamond in a castle."