To vertical align a static design:

#wrapper {
      position: absolute;
      left: 50%;
      top: 50%;
      width: 300px;
      height: 550px;
      margin-left: -150px;   // half the width
      margin-top: -190px;   // half the height
      }

One less layout table in the world!

ok, wht about "divs on firefox doesn't work well & differs from IE " is that right?? if it's not why they say that??