S-Works Integrated HS question

Hey, just bought an S-Works road frame. This is the first time I've ever owned an
integrated HS, so...

Which HS is supposed to fit? The Cane Creek IS that I got doesn't seem to be tight in the frame. The
Acqua & Sapone version at Supergo had an FSA, but they don't sell them.

I assembled the Cane Creek HS, and when pressing down on the top cup by hand, the fork/bearing move
around inside the frame. Now, I know that if an old-style HS moved around that much, it means that
something isn't right. That still true?

Anyone know anything I don't?

Mike