oh you missed a little bit out, the flashing button thingy is on the top level(where you actually walk at hte beginning,
you'll know you have stepped on it when the pedestal appears on the top level then just push it down the slope it appears next to, and watch it fly weeeeeeeee (sorry got carried away) then go and press the fashing switch on the middle floor, the desrution sphere will now be in the pedestal(its where it was originally when you first entered that room)one other thing is you must put the sphere that you put in the middle sphere back in the hole that gives you access to the lower level,
if theres anything that you don't understand on this then just reply on this post
TSA