Help with GFI plug and light switch.

I'm trying to install a GFI plug on the same cicuit where my outside lights are. My outside light's are controlled from an inside switch. I have three wires going into the GFI plug, Red, White and Black. I have connected the white and black wires coming from the house to the (Line) two bottem screws. White to silver screw and black to copper/gold screw. I then took the White and black wires coming from the outside lights and connected them on the top (Load) screws. White to silver screw and black to gold screw. I then connected the Red wire coming from the house to the red wire coming from the outside lights. I then tested the GFI plug and it worked, however when I turn the light switch on the lights don't turn on. I looked inside the light housing and all the White wires from the light are taped together to the White wires coming from the GFI plug and the Black wires coming from the light are taped together to the Red wire coming from the GFI plug. I noticed that there was one Black wire taped up alone. This Black wire is the one coming from the GFI plug (Load) screw.. Now do I remove the Black wire on the GFI plug (Load) and put the Red wires in there?. Can anyone help... I knew at this .. Thanks.. Carlos