bleed rears by putting the ign on as said and just open the bleed nipple and just touch the foot brake slightly fluid will come out of the nipple once air stopps bubbling out tighten up the nipple
do the same on the other rear one
then turn off the ign
and bleed the fronts conventionally

ie open nipple push brake down fully then tighten nipple release pedal and repeat this till air stops
then finish with the one closest to the master cylinder and repeat process as on the other front one

any probs give me a call