You are going to need more data on the motor I would imagine, but 5 phase is just a continuation of the 3 phase "Brushless" motor design expanded to give even higher resolution stepping, typically 125,000 steps per revolution, you will need to generate a PWM'd pulse on phase 1 and then wait to detect the inducted pulse generated by the other phases as they rotate past the fixed magnets, then you move onto phase 2 and repeat, phase 3 and so on, if you can get hold of a basic 3 phase control schematic you should be able to work out how to adapt it to 5 phases.
I am not a brushless motor control expert however and my explanation will be over simplistic and probably lacking in a few areas but the basics are right.
In terms of how the motor is wound well typically you have 2 setups, star or delta, which one is used I don't know, its something you will have to probe with a meter or get the motors datasheet.