What stepper wires to connect?

I am in the process of hooking my 6 wire vextas up to my DeskCNC
controller. I thought my motors were like some shown in the file
section but they are not. Mine are PK268M-02A if that helps. Here is
a ascii copy of the diagram that came with them.

Blue Yellow Red
| | |
| | |
----////////////////////----


Green ------|
/ *
/ * *
/ * * *
White ------/ * *
/ *
/
/
Gray -------|

I tried red-yellow and green-white, but all my motor does is make
noise and vibrate, no shaft rotation. Am I using the correct wires
or do I have a different problem?

Thanks
Kevin