Wo ist der fehler im code?

Ich habe ne Code für ein design geschrieben aber irgendwie ist alles grau, kann einer sagen wo der fehler ist?

<style type="text/css"> <!--
td.nav{background-image:url(http://s11.directupload.net/file/d/1783/52wjfjo8_png.htm);}
td.nav:hover{background-image:url(http://s11.directupload.net/file/d/1783/52wjfjo8_png.htm);}
td.nav_heading{background-image:url(http://s11.directupload.net/file/d/1783/52wjfjo8_png.htm); width:185px;height:38px;}
td.edit_content_top{background-image:url();}
td.edit_content_bottom2{background-image:url();}
td.edit_content_bottom{background-image:url();background-color:transparent;}
td.edit_content{background-image:url();}
td.sidebar_heading{background-image:url(http://s11b.directupload.net/file/d/1783/6pbk9edh_png.htm);width:168px;height:38px;}
td.edit_rb_footer {visibility:hidden;}
td.edit_below_nav {visibility:hidden;}
td.edit_navi_headbg{background-image:url();background-color:transparent;}
td.edit_rechts_sbg{visibility:hidden;}
td.edit_rechts_cbg{background-image:url();background-color:transparent;}
td.edit_header_full{background-image:url();}
td.edit_rechts_bottom{background-image:url();background-color:transparent;}
body{background-image:url(http://img.webme.com/pic/f/fatboy/schwarz.jpg);}
td.shouty{background-image:url();background-color:transparent;}
td.shouty2{background-image:url();background-color:transparent;}
td.shouty3{background-image:url();background-color:transparent;}
td.shouty4{background-image:url();background-color:transparent;}
td.shouty5{background-image:url();background-color:transparent;}
td.edit_header_full{width: 921px;background-image: url(http://s3b.directupload.net/file/d/1783/2b36vrmk_png.htm);height: 104px;}
<!--
body {background-image:url(http://s11b.directupload.net/file/d/1783/q8o4mfdx_png.htm);background-attachment: fixed;}
--></style>

Ich habe dir mal den Code verbessert,
denn im Codes waren keine Bild URLs,
sondern nur die Adressen zur Upload seite.

Der Code:

mfg Dominik
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Besucht die offizielle Hilfeseite vom Homepage-Baukasten:

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