I just purchased a new 44" ceiling fan to replace my old 20" broken one. I've taken the old one off the ceiling and there is a metal box w/ 2 "female" parts for screws. My instructions say to screw the 2-3" wood screws into the ceiling. I don't have any so what I did was took some good screws that were bigger and long and screwed them into the " wood screws into the ceiling. I don't have any so what I did was took some good screws that were bigger and long and screwed them into the " parts on the box. It seems tight enough and strong enough to hold the fan. The part that I'm having problems with, is I'm supposed to connect black to black, white to white etc... However in the ceiling the wires that come out are white, brown and blue... So what do I connect to what?