I love the stacks docklet, here is a screenie I did a few weeks ago using it,
https://www.wincustomize.com/skins.aspx?skinid=21836&libid=13
https://www.wincustomize.com/zoom.aspx?skinid=21836&libid=13
As far as extracting the zip, it really does not matter where you extract it to, so long as you place the extracted file in the path(folder) that Mikewell said above. C:\ProgramFiles\Stardock\ObjectDock\Docklets
I have ODP, and I also have to manually change the dock from bottom to top each time, in order to get the fly out fan or grid to work, when the dock is on top of the screen, as Mirsguy stated above.