Código:
<.doctype html public -//w3c//dtd xhtml 1.0 transitional//en http://www.w3.org/tr/xhtml1/dtd/xhtml1-transiciónal, dtd>.
Html xmlns=http://www.w3.org/1999/xhtml>.
Head>.
meta http-equiv=content-type content=text/html, charset=utf-8 />.
title>wellcome bn</title>.
style type=text/css>.
Body { tbackground-image: url(imágenes/bk_gradient_2px.jpg), tbackground-repeat: repeat-y, tbackground-color: #bcbda, ttext-align: center.
}.
#ventana { tposition:relative, tleft:auto, ttop:1.021in, twidth:999px, theight:auto, tz-index:2, toverflow: visible, tvisibility: visible, tright: auto.
}.
#logotipo { tposition:absolute, tleft:1.5%, ttop:6px, twidth:999px, theight:auto, tz-index:3, tvisibility: visible, tright: 5%.
}.
#mail { tposition:absolute, tleft:11px, ttop:94px, twidth:999px, theight:auto, tz-index:4, tfont-family: trebuchet ms, arial, helvética, sans-serif, tvisibility: visible, tfont-size: 14px, ttext-align: right, tright: 5%.
}.
#tlf { tposition:absolute, tleft:12px, ttop:64px, twidth:999px, theight:18px, tz-index:5, tvisibility: visible, tfont-family: trebuchet ms, arial, helvética, sans-serif, tfont-size: x-large, tcolor: #003971, ttext-align: right, tright: 5%.
}.
#fondo { tposition:absolute, tleft:0, ttop:0, twidth:100%, theight:100%, tz-index:1, tbackground-color: #bcbda, tvisibility: hidden.
}.
->.
/style></head>.
Div style=width:1024px, position: relative, Margin-left: auto, Margin-right: auto;>.
body class=fondo>.
Div id=ventana><img src=imágenes/ventana_wellcomenvg, gif width=999 height=427 align=middle /></div>.
Div id=logotipo><img src=imágenes/logotipo-bnfako.gif width=313 height=80 /></div>.
Div id=mail><a href=x@hotmail.com>xx@hotmail.com</a></div>.
Div id=tlf>965.xx.xx.xx</div>.
P> </p>.
/body>.
/html>
Así he ajustado los divs en dw: