enjay,
Welcome to the QB.
I don't have pics right now to post, but I will tell you this: The White made machines rotate opposite the Singers you have. In other words the hand wheel rotates away from you rather than towards you. If you rotate it wrong it will mess up the thread big time.
If someone doesn't beat me to some pics I'll try and scare up a couple.
I don't know what kind of knee controller you have, so I can't help there.
Joe