>>Can any one help me? I need to figure out the pinout/ wire configuration of the motor before I wire it up. I've tried the company and they are no help.
One of the easiest ways to determine the internal connections of a stepper without any reference documents is with a multimeter, just check the resistance between the leads..
In the photo below, the black is 'center tap' on the top windings..
if the meter shows [for example] 20 ohms between the red and the red/white, then either black&red or black&red/white would show half of that, or 10 ohms..
When it's hooked up if it seems to 'jitter' or not move correctly, or very jumpy, usually reversing on pair [the red & the red/white] would correct the phase shift properly..