that shroud's pretty easy to take off......basically jack up the car, get under and remove the lower half moon of the radiator shroud, you'll probably even see some 10mm bolts holding the shroud to the radiator down there. lower the car, take the upper radiator hose off and remove the rest of the screws that hold the shroud in place, and lift up....

my question to you is...if you know your radiator is leaking......who cares where it's leaking from, you need to replace the radiator. and even if you do jerry rig something for a temporary fix....it's only a temporary fix and you'll need to replace it anyways. so fix it right the first time.