how to control stepper motor (no replies)

Hello
can One controler a stepper motor nema 17 (http://www.phidgets.com/products.php?product_id=3318)
with
-power supply 12V 5A (http://www.ebay.fr/itm/Adaptateur-secteur-alimentation-LED-AC-DC-220V-12V-5A-5-5mm-/220916891047?pt=FR_YO_MaisonJardin_Bricolage_InstallationElectrique&hash=item336fac3da7#ht_1866wt_1031)
-a voltage regulator (LM2596 Power step-down Modulates DC 4.0~40 à
1.3-37V Adjustable + LED Voltmeter) - [www.ebay.com]


thanks