Acrylic Prusa I3 PRO B 3D Printer DIY kit

hello, Santa Claus gave me a Prusa i3 ProB kit.Thanks to your videos editing was easy, everything is well numbered, explained. Only I can not find further explanations to set up, connect to the PC etc. I found a video showing the operation of the button on the control panel but mine does not have a "push".Do I have to connect USB to the PC to set? and what do we do next? Setting, driver, software? I do not find. Thank you to inform me about the possible web links to use the beautiful machine that I assembled.