Hmm.
I suggest changing the inclination of the orbit, and then changing some of the other orbital elements.
Or:
Try using the coordinates and the velocities in the different directions.
I assume you want them to orbit the two stars in their plane, which isn't flat on any axis, so it'll probably be hard to do (if there's no feature which lets you do it within the program which I haven't found).
I'd suggest you try placing the bodies in a position which has the same x or y coordinate as the two stars when their x or y coordinates are the same. Then line them up.
I haven't thought out how to get the velocities right, though.