I can't get this sample code to work.

Hi I need help getting this sample code for robot car to work. I have attached the the sketch and headers. All help will be appreciated. Thanks.

IRremote_car.ino (2.84 KB)

IRremote.h (2.61 KB)

IRremoteInt.h (3.2 KB)

IRremote.cpp (16.4 KB)

What exactly is wrong ?
Does the IRremote stuff work on its own ?

Also, do the motors work on their own?