This picture should make your job easier -- I will walk you through it
Fan Figure 1
The GREEN wire is your ground and connects to frame of the fan
The WHITE is the neutral and is wire nutted to the white wire on top of fan
The BLACK is power for fan & light -- it is wire nutted to a (BLACK) & a (BLUE) wire
This completes the wiring of fan and if done correctly you have power to light
The WHITE wire goes to white wire on the light fixture
The BLUE wire goes to the black wire on light fixture