The ends of the anti roll bar attach to the frame rails through a link like on the front sway bar.
My anti roll bar is not the same as yours. I'd like to compare mine to yours. What is the part # from Jeg's?
As Rocky wrote, there should be three bolts holding the front spring perch to the sub-frame. Do you have a picture of the area in question?
The rear sub-frame bushings are a PITA! At least mine were... and I had my fuel tank out for replacement. As stated, the bushings are two pieces, probably cemented together by age.
I cut mine out with my trusty Dremmel and reinforced cut off wheel. Once the old bushings were out, I had to deal with the rust in the hole where the bushing goes. My new poly graphite bushings wouldn't go in until I removed the rust.
I had to buy an angle drill attachment to get in the very tight area between the outer frame rail and the inner fender to clear out the hole.
You shouldn't have any problem with installing the bushings to the springs. The front bushing should already be pressed in the spring.
Give a shout if you run into any more bumps in the road.