Back Down / Pro Hop

Please help me, I have been playing NBA Live 07 for like 3 months now and i still dont know how to do the "Back Down" move,i dont know if that's what its called but its what Shaq usually does to overpower his defender..I really need to know how to do that since my teams' superstars are mainly centers and forward,also that would be nice to do if you got a smaller defender and take advantage of the situation.

Also, i would like to know how to do the Pro Hop since it is the best way(i think) for penetration,since crossover moves barely loses your defender if your speed/quickness is quite low,please enlighten me.

I read most of the topics here and I cant get any answer.

Oh BTW, I do not use the controller, I only use the Keyboard.

Push the Right Analog stick down for backdown... push it up for pro hop.

Since you dont use a controller... you'll have to find the thread where it installs the keyboard button or something... I forgot what it was called some joy thing.

PPJoy jugs...the thread title is something along the lines of "Keyboard FINAL SOLUTION"