Hola,
refiriéndome a la 1º pregunta, si bien has ensanchado el espacio de contenido el tamaño del cabezal no se ha alterado, ya que lo que se ensancho ocupa el espacio de los Box
Si te preguntas porque tu cabezal no se ve es porque tienes 2 códigos que indican una imagen de encabezamiento y está leyendo 1 que no tiene asignada URL, por eso aparece en blanco. Fíjate entre tus codes y busca esto:
Cita: <style type="text/css">
<!--
table.edit_main_table{width: 85% !important;}
td.edit_main_tr{width: 100% !important;}
table.edit_second_table{width: 100% !important;}
table.edit_third_table{width: 100% !important;}
td.edit_navi_headbg{width: 20% !important;}
table.edit_rechts_tabelle{width: 100% !important;}
td.edit_rechts_bottom{width: 15% !important;position: absolute;left: -300px;}
td.edit_rechts_cbg{width:100%;}
td.shouty{visibility: hidden;width: 0px;}
td.edit_rechts_sbg{visibility:hidden;}
td.sidebar_heading{visibility: hidden;}
td.edit_rb_footer{background-image:url();}
td.edit_rechts_bottom{background-image:url();}
td.edit_header_full{background-image:url(''); height: 150px; width: 921px; border-color:#ffffff; border-width:0px; border-style:solid;}
td.edit_below_nav{visibility: hidden;}
td#nav_Umfrage{display:none;}
td#nav_abstand, td#nav_abstand1, td#nav_abstand2, td#nav_abstand3, td#nav_abstand4, td#nav_abstand5, td#nav_abstand6, td#nav_abstand7, td#nav_abstand8, td#nav_abstand9, td#nav_abstand10, td#nav_abstand11, td#nav_abstand12, td#nav_abstand13, td#nav_abstand14, td#nav_abstand15, td#nav_abstand16, td#nav_abstand17, td#nav_abstand18, td#nav_abstand19, td#nav_abstand20, td#nav_abstand21, td#nav_abstand22, td#nav_abstand23, td#nav_abstand24, td#nav_abstand25{display:none;}
input, textarea {background-color:# 990000; border:solid 1px #000099; color: #000099;}
table.forumtabelle {border:solid 1px #000099; color: #000099;}
--></style>
Cita: <style type="text/css">
body{background-image:url(http://i64.servimg.com/u/f64/13/84/98/34/jw10.jpg);} background-no-repeat;background-attachment: fixed;}
td.edit_navi_headbg{background-image:url(http://g.imagehost.org/0709/imagen13.jpg);}
td.edit_rechts_cbg{http://g.imagehost.org/0188/imagen5.jpg);}
td.edit_rechts_bottom{background-image:url(http://g.imagehost.org/0812/imagen6.jpg);}
td.edit_header_full{background-image:url(http://pixelea.com/s/d5b8cd9d7b.png);}
td.nav_heading{background-image:url(http://g.imagehost.org/0306/imagen11.jpg);}
td.nav{background-image:url(http://g.imagehost.org/0316/imagen12.jpg);}
td.nav:hover{background-image:url(URL IMAGEN -12- HOVER);} td.sidebar_heading{background-image:url(http://g.imagehost.org/0405/imagen9.jpg);}
td.shouty{background-image:url(URL IMAGEN -8-);} td.shouty2{background-image:url(URL IMAGEN -8-);} td.shouty3{background-image:url(URL IMAGEN -8-);} td.shouty4{background-image:url(URL IMAGEN -8-);} td.shouty5{background-image:url(URL IMAGEN -8-);} td.edit_rb_footer{background-image:url(http://g.imagehost.org/0823/imagen7.jpg);}
td.edit_content_top{background-image:url(http://g.imagehost.org/0915/imagen1.jpg);}
td.edit_content{background-image:url(http://g.imagehost.org/0204/imagen2.jpg);}
td.edit_content_bottom{background-image:url(http://g.imagehost.org/0096/imagen3.jpg);} td.edit_content_bottom2{background-image:url(http://g.imagehost.org/0501/imagen4.jpg);} td.edit_below_nav{visibility:hidden;} td.edit_rechts_sbg{visibility:hidden;} </style>
