Please tell me you a) looked up squeely brakes and b) have shims with those pads.
As have been said in every bloody thread regarding brake squeal.
Rub face of brakes
Machine rotors (get new ones if yours are ratty)
Bed them in properly
Do you have shims????!!!!
Oh you do?
Get different brake pads
Still no good?
Do you have the retaining spring on top of the brakes holding the pads down?
Did you check to see if your caliper bolts are tight?
Get them rebuilt