problema layout con ie5.5 e inferioriori

[eamania]

problema layout con ie5.5 e inferioriori

Salve, ho un problema con un sito, con ie 5.5 invece che visualizzare la pagina normalmente mi visualizza una pagina lunghissima, e non so cosa sto sbagliando.
questo è l'indirizzo dove ho messo il sito per farvi vedere: w-w-w.miraforever.net/miraforever02/

ed ora ecco il file css

charset "utf-8";
body {
    margin-left: 0px;
    margin-top: 0px;
    margin-right: 0px;
    margin-bottom: 0px;
    background-color: #006699;
}
.rss_logo {
    clear: right;
    float: left;
    height: 54px;
    width: 55px;
    position: relative;
}
.rss_scritta {
    position: relative;
    width: 280px;
    
    float: left;
    font-family: Verdana, Arial, Helvetica, sans-serif;
    font-size: 20px;
    color: #FF9900;
    font-weight: bold;
    margin-top: 4px;
}
.rss_scritta_piccola {
    position: relative;
    width: 280px;
    
    float: left;
    font-family: Verdana, Arial, Helvetica, sans-serif;
    font-size: 20px;
    color:;
    font-weight: bold;
}



.sinistra_interno_home {
    height: 100%;
    width: 590px;
    position: relative;
    margin-left: 5px;
    clear: left;
    float: left;
    padding-left: 5px;
    margin-top: 15px;
    margin-bottom: 15px;
}

.destra_interno_home {
    height: 100%;
    width: 335px;
    position: relative;
    margin-right: 5px;
    float: right;
    border-left-width: 1px;
    border-left-style: solid;
    border-left-color: #F3F3F3;
    margin-top: 15px;
    clear: left;
    padding-left: 5px;
    margin-bottom: 15px;
}


#contenitore {
    width: 960px;
    margin-right: auto;
    margin-left: auto;
    position: relative;
    background-color: #FFFFFF;
    height: 100%;
    display: block;
    border-right-width: 1px;
    border-left-width: 1px;
    border-right-style: solid;
    border-left-style: solid;
    border-right-color: #000000;
    border-left-color:;
    margin-bottom: 0px;
}
#sinistra {
    clear: left;
    float: left;
    width: 600px;
    position: relative;
    height: 100%;
}
#destra {
    clear: right;
    float: right;
    width: 345px;
    position: relative;
    height: 100%;
}
#menu {
    width: 960px;
    height: 35px;
    font-family: Verdana, Arial, Helvetica, sans-serif;
    font-size: 12px;
    font-weight: bold;
    color:;
    background-image: url(../immagini/pulsanti/link.gif);
    background-repeat: repeat-x;
    background-position: bottom;
    clip: rect(auto,auto,auto,auto);
    position: relative;
}
#sotto {
    clear: left;
    float: right;
    position: relative;
    width: 99%;
    margin-top: 10px;
    height: 100%;
    background-color: #CC6633;
}
.notizie_box {
    height: 100%;
    width: 590px;
    position: relative;
    float: left;
    border-bottom-width: 1px;
    border-bottom-style: solid;
    border-bottom-color:;
}
.titolo_data_notizie_home     {
    clear: left;
    float: left;
    width: 50px;
    position: relative;
    height: 50px;
}
.titolo_notizie_home {

    float: left;
    position: relative;
    width: 540px;
    margin-top: 2px;
}
.sottotitolo_notizie_home {
    
    float: left;
    position: relative;
    width: 540px;
    margin-top: 1px;
}
.menu_link {
    font-size: 11px;
    position: relative;
    width: 690px;
    
    float: left;
    margin-left: 30px;
    padding-top: 10px;
    padding-bottom: 10px;
    padding-left: 10px;
}

.testo_news_box {
    width: 100%;
    float: left;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 12px;
    line-height: 140%;
    text-align: justify;
    color: #202020;
    text-decoration: none;
    height: auto;
}
.menu_posizione {
    margin: 10px;
    font-size: 10px;
    width: 200px;
    position: relative;
    clear: left;
    float: left;
    font-family: Verdana, Arial, Helvetica, sans-serif;
    font-weight: lighter;
}
.pubbl_hotel {
    height: 100%;
    width: 590px;
    position: relative;
    
    float: left;
    border-top-width: 1px;
    border-bottom-width: 1px;
    border-top-style: solid;
    border-bottom-style: solid;
    border-top-color: #E9E9E9;
    border-bottom-color:;
}
.rss_blocco_destra {
    position: relative;
    width: 100%;
    height: 56px;
    margin-bottom: 20px;
}
.ultime_news_blocco_destra {
    position: relative;
    height: 100%;
    width: 98%;
    border-bottom-width: 1px;
    border-bottom-style: solid;
    border-bottom-color:;
    padding-bottom: 10px;
    margin-bottom: 10px;


}
.ultime_news_blocco_sinistra {
    position: relative;
    width: 440px;
    height: 100%;
    margin-bottom: 20px;
    float: left;
    margin-top: 20px;
}
.parchidivertimento_banner_piccolo {
    clear: left;
    float: left;
    height: 164px;
    width: 140px;
    position: relative;
    margin-top: 20px;
    margin-bottom: 20px;
    margin-right: 5px;
    background-color: #FFCC00;
    background-image: url(../immagini/pubblicita/parchidivertimento.jpg);
}

```aiutatemi vi prego!

[berry]

Così ad occhio direi che ci sono un pò troppi

height: 100%;