Ghost Whisperer Season 4 Episode 9 Pieces of You

I want Rick Payne back!

I want Rick back too! I hate this Sam/Jim storyline. I want either a) Jim to die and Mel & Rick to get together b) Jim to suddenly come back alive.
Also the song in this episode "I'm Not Moving" or whatever it is called, was featured in season 2. Wonder if anyone can guess which!

I am really confused. so. jim's ghost it is in sam's body ...but.. where is sam's body? because i see that jim's ghost it is in.. jim's body and it makes no sense to me. can anyone explain? please..