An inpact wrench helps with the spring compressors, just compress both sides equally. Its an easy job, but then again I have done this many many times.
Take off the wheel/rim
Remove the clip holding the brake line to the strut
Take off the two nuts on the bottom of the strut, the rotor assy will lower
Take the 4 nuts off the top of the strut with someone holding it below
Pull the strut down and out (will require some wiggle to get around A-frame, etc)
Compress spring
Un-cap the top of the strut, remove top of strut
Lift compressed spring over the shock making note of orientation (end of spring)
Compress new spring, slide over shock
Reverse previous steps
When you put the strut assy back in, loosly bolt the top 4 first
Then have someone lift the rotor assy so the 2 bolt holes line up with the strut - slide bolts in to hold
Tighten all nuts
I have pics of my Tien install somewhere, I will look for em when I get back from the office
Someone please post if I missed something, I typed fast.....you dont want to screw this process up!