Sorry, yes you are correct, fronts only for the Prelude rotors.
You will need to use OEM rear rotors, should not be hard to find these.
edit: taken from HT.com
The 96 spec have the same pads and calipers as regular Integras, identical braking performance.
The 97+ are 5x114.3 and 11.1" front and 10.2" rear brakes. The fronts can go right on without machine work, the rears will require redrilling the rotor, as Prelude ones i'm not sure go on.
the rear Integra rotor has a smaller centerbore, and the 96 ITR has a bigger one, so there are no bolt on USDM rear rotor replacements for the 96 ITR. Also the hubs protrude more, front and rear, giving the car a wider track.
Lastly, I ran across this post:
92-96 Prelude non-VTEC front
Redrilled DC2 Integra (non-ITR) rear