Ryn i had the same problem with Kimberley she was awful to get to sleep until she was 5 months old. She would only sleep with us in the room with her and as soon as we left she would scream. One night after being up to her i don't know how many times i stuck her in the car capsule and managed to get 2hrs sleep. It was the only way to get any sleep.
I tried a stories on tape or CD for her to listen to and that worked for a little while. I know BBC sell some good ones on CD.
