Rescue Me was written in G and was recorded by Johnny Fean using a capo on the third fret*, as mentioned, and using a standard D shape. If you follow this you'll need to use D, C and G followed by A, G and D and then for the chorus use D,G,Em,A and D. There's a sneaky little chord used for the "..busily climbing my family tree" bit, but it can easily be achieved by holding the D shape while removing your first finger, thereby leaving the third string open. No capo? Don't worry. Just play it in D.