Does anyone know what kind of character Jackie Templeton was and what her storyline was on the show? I remember it having to do alittle with Robert and Luke, but I don't remember either Laura or Anna being around there then.

the only thing i remember about her character was she was a reporter

Laura wasn't there when Jackie first appeared. She was presumed dead. Anna came along a few years after Jackie left.

She was reporter who teamed up with Luke to find her sister, Laura Templeton, who bore a striking resemblance to the "real" Laura.