excellent video. warning: may bring tears to your eyes.
breast crawl
you may also like to read this site too.
been told by a friend who is bf a now 6 wk old (but born at 30 wks) that when she was still struggling to latch him properly, if she relaxed put her ds on her chest and relaxed and let him 'get on with it' he achieved a better latch than her efforts of latching him on.