I am new too. I just started printing items last weekend
I am making a few assumptions of where you are at
1) Your X, Y and extruder filament are calibrated ( I calibrated mine using Pronterface. Saved using commands in Pronterface )
2) Your firmware settings for your calibrations "Configuration.h" are updated & saved using Arduino
I am using Repetier software
"The installer comes already with everything you need. It includes Repetier-Server, Slic3r, CuraEngine, Skeinforge, Python and Pypy. Requires Microsoft .NET Framework 4."
I do like seeing the button blue when connected
I have sliced with CURA and Slic3r. I really do not know the big differences yet.
With Repetier, I can use the manual tab to move x,y z axis / heat bed and extruder / extrude filament as done with Pronterface