- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id )annotation {

MKAnnotationView *thisAnnotationView = [ [ MKAnnotationView alloc ] initWithAnnotation:annotation reuseIdentifier:@”whateverIdentifier” ];
thisAnnotationView.image = [ UIImage imageNamed:@"whateverImage.png" ];
/*
CGPoint offsetPixels;
offsetPixels.x = 11;
offsetPixels.y = -thisAnnotationView.image.size.height/2;
thisAnnotationView.centerOffset = offsetPixels;
*/
return thisAnnotationView;
}

This works perfectly…you’ll notice I commented a section of code out. I used that to center my image appropriately. You’ll need to do this since by default it centers the image on the point you want, and you’ll want most images to be above the point.