I am going to do my best to help you out even though I do not have the knowledge that some of these guys have. It seems to me that you have 2 different issues going on. The first is that your rear end is sitting lower than your front. The second is that your Jeep is leaning to the passenger side. Here are my thoughts:
Problem 1 is with the springs. I don't think there is anything that you could do that would cause the rear end to sit lower. Currie isn't perfect and I believe that quality control is getting worse as they are getting more and more popular. That view may not be popular on this board or others, but there seem to be more and more complaints lately. Look at last years run on Johnny Joints that were bad (which I had 2 of) and now quite a few people that seem to get bad springs. That said, people also have very lofty expectations about Currie's products because of the praise they see on these boards. I wonder sometimes whether or not any manufacturer could live up to those expectations. My advice here is to work with Currie and let them correct your problem. Things will work out in the end.
Problem 2 I think is with your install. If you had a bad spring and you swapped the springs from side to side, then the lean should have followed the bad springs. It did not, which means that you have something else going on. My Jeep leans to the passenger side as well. I have the Savvy 3" springs on mine. I thought that it was rear spring related so I tore apart the rear end with the help of another guy on this forum. I know it was put together right the second time and while the lean got better, it is still there. I have not had a chance to get in to the front end, but now that the weather is cooling off, I am going to tackle it. I believe my problem is in my front end because of some stuff that I came across while changing out my steering box. My advice to you here is to do the same thing I will do. Follow the advice given in the following quote
disconnect sway bars, unhook rear trackbar, if you have adjustable CAs ( which sounds like you do ) unhook one upper CA. Now your jeep is sitting nice and flat.
Adjust trackbar to center axle under vehicle. Then adjust upper CA to bolt in without pulling on anything. Hook up sway bars then enjoy your jeep.
I really hope this post doesn't get lost in the drama that this thread has become. There are some helpful people on this board, MrBlaine being one of them. Let people help you and things will be fine.
Oh and my Savvy/Currie 3" rear springs measure 15.5" and 16" unsprung. That is full length when not on my Jeep. If yours are 17" then I would think that you did in fact get 4" lift springs. That isn't to say that maybe the spring rate is wrong, but it does not look like they sent you 3" springs.
Good luck with everything and I hope you can get it all worked out.