Gameobject animation when loaded with Resource.load

Hi everyone. this problem is draving me crazy. I have a scene and into this scene i load a c4d model. the code to load the book is quite simple

 loadedBook =  (GameObject)Instantiate(Resources.Load<GameObject>("LoadableModels/" + modelName));
 

this model is made by 7 subparts. and i want to animate the position and the rotation properties for 3 of those 7 submesehs, but i have no idea on how to do it. I've found a lot of tutorials on internet, but all ot those suppose that the model has been loaded before .. thanks in advance