I don´t think they were so wrong about what the "new generation" was those days...
Fed, Guga, Marat,Lleyton, etc took part in the campaign
There were a lot of different ads
EDIT: The first ad posted is probably a US poster
I guess that`s why Roddick, Gambil and Marat (the new poster boy for some time after his 2000 USO title) are there...
EDIT 2: Nadal,Murray, Monfils, Djokovic, Gasquet, etc were kids those days
They are these days` "new generation"