i'll try and explain without pics!
REARS, slacken off the two 18mm nuts that hold the dampers on underneath, but don't full remove, then undo the nuts on both dampers in the boot, jack up car from both sides, the rear beam will now drop down. Remove the dampers fully now, and then the springs. Now fit the H&R adjustable platforms through the rear trailing arms,(wind all the way down) fit the springs, add the dust covers to each shock, and add one half of the rubber top mounts to each shock. bolt up the shocks, locate the damper tops into the body of the car by slowly lowering the jacks, then add the other half of the rubber top mount and bolt up, job done
FRONTS... jack up car, remove wheel. Slacken off the top bolt underneath the bonnet, but dont remove. Remove the abs wire off the shock, then undo both bolts that attatch the shock to the hub. Remove the shock from the hub carfully, not damaging any wires or pulling out driveshfts (be carfull!) Then with help from a mate support the shock, undo the bolt previonly slackened off under the bonnet, and remone the unit. Now you need the bearing off the unit, remove, and build up the H&R untill it looks like this (pic pinched off another tread)
http://premium1.uploadit.org/smokey/Hybrid/DSC00539.JPG
now refit in revese order, adjust suspension height to suit with the spanner supplied
enjoy