go to where you installed arduino IDE, and go to the IRremote library folder and find IRremoteInt.h ex "C:\Users\Robert\Desktop\arduino-1.0\libraries\IRremote\IRremoteInt.h"
towards the top of this text file you should see something like:
#include "WProgram.h"
replace it with:
#if defined(ARDUINO) && ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#include <pins_arduino.h>
#endif
teda... it works