Ok so i got one of those ebay cnc engraving machines and now i want to add a 4th axis to its controller board. It just so happens it allready has pins pulled out for just that.
Take a look:
http://i46.tinypic.com/2qs14x3.jpg

Now i need to connect that board to one of these drivers.

Stepstick A4988 Stepper Driver Pololu RepRap Prusa Mendel Sanguinololu Ramps | eBay

I wont need nothing more then 2 amps and i have a few at home.

So come on you electronic experts. Im a complete newb when it come to this. What needs to connect where.

Thx in andvance.