What a coincidence, I'm reading my May 2004 Motor Trend magazine, and it's all about tire technology. Specifically in one section, it mentions that if you get 2 new tires, the fresh tires should ALWAYS should go on the back of the car--be it FWD, AWD, or RWD. Why? If the more worn tires are on the rear, you can put yourself in a very bad case of oversteer if you hydroplaned.
Accordingly, place the 2 fresh tires on the rear of the car--as you correctly did.