I have the one from mustang plus too, same deal. I dont have pics readily available so I will try to explain.
sway end links face the rear of the car with the hump over the pumpkin, there are U bolts that go around the axle shafts and those go around a thick C channel piece (on either side of pumpkin as close to the say bar courners as possible and then a flat plate goes over the U bolts and then the nuts on the threads. this should bolt the sway to the axle (dont tighten yet, just make it snug.
measure where the support ends fit and make a mark on the frame
there are 2 ] looking brackets with threads on either side, these will go into the frame rail, you need to drill 2 holes on either side equal distance from the mark made above. they will need to be slightly larger than the ] bracket.
I drilled and put a bolt on one side, fanagled it in and out the other hole, placed the flat brace and the kick down bracket on and started the nut, then removed the nut on the other side and installed through flat bracket and kickdown. remember to install the threaded link (with the bushings - the real names are escaping me memory at the moment) into the kickdown before fully installing.
the rest should be pretty much appearent. the fun part is drilling into the frame with 2.5" dual exhaust in place, home depot has a really long drill bit that will help you unless you dont have the exhaust issue.