72 volt brushless motor conversion from 48 volt chinese

has anyone ever found a wiring diagram for the 72v 1500 watt brushless motor controller sold on ebay by E-crazyman out of hong kong they are shipped with no diagram and the chinese seem to be good at puzzles all I have is a pict of the plugs telling me what they're for but no indication of what each wire is to corespond to my 48 volt chinese gio bike
Kirby