OK, I have looked all over the net, and everywhere I go, all the slim Ps2have like a million screws on the bottom to unscrew and take apart ur Ps2 and put a flip top on. But mine doesn't, there isn't one damn screw on it, anywhere. So is there a way to install it or do I have to buy these stupid little key things I see everywhere. But the keys weren't in the description that I needed if I bought the flip top which I did?