This link should help you with wiring:

http://www.blueeaglelabs.com/pages/instructions-guides


However, before you can send any movements to your printer you must first "Home". Send a G28 command or use the home button on pronterface. This essentially tells the computer your starting position. Kind of like, "Start here".

Kossels home to Z-Max and X0Y0. That means when it's "home" it knows it's now at the maximum Z hieght and at X0Y0.