Chickentikka

Thanks Sahil, I've been trying to do this, following every different set of instructions I can find, but I keep getting stuck. Yours is the clearest, but it is still not working for me. After I have refined the selection and clicked apply, nothing happens...the wiggly selection lines remain and when I try to move the background away the whole image comes with it, leaving the outline of the selection area behind. What am I doing wrong?