not sure if its been discovered, but few days back found the easiest way ontop of org
[ame]http://www.youtube.com/watch?v=7Wrb_tGJR7Y[/ame]
dont go flaming me "omg that stuff is so easy, this is just a tip for anyone wanting to get up REALLY fast"
EDIT:
heres how you get ontop of the building
[ame]http://www.youtube.com/watch?v=3joWHsqzqiE[/ame]