Well, I have all the origins set up the way I want to but, I cannot rotate the forearms or upper arms. Is it possible to rotate the forearms and upper arms with the IK controllers? They seem to only stay where they are and the only thing I CAN do with them is only move the upper arms. It seems with the IK controllers, the forearm is immovable and un-rotatable.

Purhaps your rig is not properly done. I have a set of FP arms that work perfectly that I would share with you PM me if you like.

The forearm being static is an unfortunate consequence of having IK controllers. The way you can manipulate the forearm is through the Hierarchy > IK panel when you have the forearm selected. From there, you should adjust some of the 'preferred' properties of the 'rotational joint' subrollout to get desired results.

The X-axis adjusts how the overall arm is rotated. Imagine rotating your forearm between the elbow and the wrist joint; that's how the X-axis adjusts it.
The Y-axis adjusts what angle the forearm and upper arm are at.
The Z-axis does roughly the same thing as the Y-axis.

Lol, I wish I knew wtf you guys are talking about...

I asked Broke and he said to change the swivle angle of the IK Goal, I will also try out the other ways too! Thanks.
By the way, are you allowed to rotate Bone 24? I want the animation to start rotated 90 degrees to the left, then come up and idle (draw animation) but I can't seem to rotate the entire model.

Turn on interactive IK. Set the cutoff threshold (or something like that) to 4 or 5... This will disengage the IK at bone24. If you want, you can set bones to no twist on x or y or z. Also, at the top, there's a dropdown that says view. Make it Local or parent.

Aight, thanks, I'll see what I can do.