Front coilovers

So I have a single cab pre runner 2006 2wd and I just put a set of rough countries coil overs and on and now my truck is squatted and my tires are wearing out super bad with a gnarly wobble! I have a set of blistein 5100 on the rear. Wtf is going on ? Can someone help me out ?

 

What is "squatted"? Front jacked way up (the rear is squatted)?
If so, then you need to lift the rear too... (block, add a leaf, or new springs)
Also, are the springs on those RC shocks correct for your single-cab 4-cyl Prerunner truck? (if not, they'll have too much lift and ride stiffer)

Finally, why Rough Country (and not Bilstein) if you already have 5100s on the rear?