Are you wanting a JS or CSS solution?
CSS: on #x-content-band-19
display:-webkit-box;
-webkit-box-pack:center;
-webkit-box-align:center;
Javascript: Just take the container height of those 3 divs, get the height of each child, subtract the diff and divide by 2. So like.
var ph = $('#x-content-band-19').height();
var ih = $('img').height();
$('img').css({top : (ph - ih) / 2 });