My modified version has an unchanged GUI, but in the "Actions" tab

Alt+Shift+Tab / Alt+Tab are actually mapped to Alt - and Alt = (mapped in Dexpot controls to Previous Desktop / Next Desktop)
LWin+Tab / LWin+Shift+Tab are mapped to Alt F2 and Alt F3 (mapped to Full-Screen Previews).
I am using it on an HP Envy 14 but since it uses the Synaptics API, it should work for any laptop using Synaptics drivers.
Here you go! Enjoy! Made with Visual Studio 2010.