Nie działa w IE.

[Bagsiu]

Mam pewien problem :
Moja strona nie działa w przeglądarce IE.
Oto kod CSS :

Kod:

#kontener {
width:1000px;
height:1050px;
margin-left:auto;
margin-right:auto;
background-color:#f5f5ef;
border-bottom:2px solid #c5c3a8;
border-top:2px solid #c5c3a8;
border-left:2px solid #c5c3a8;
border-right:2px solid #c5c3a8;

}
#naglowek {
width:998px;
height:133px;
background:url(obrazki/naglowek.png)repeat;
border-bottom:2px solid #c5c3a8;
border-top:1px solid #c5c3a8;
border-left:1px solid #c5c3a8;
border-right:1px solid #c5c3a8;
}
#nazwa {
width:60px;
height:10px;
margin-right:auto;
margin-top:-80px;

}
#header {
width:547px;
height:32px;
margin-right:auto;
margin-left:auto;
border-top:2px solid #c5c3a8;
border-left:2px solid #c5c3a8;
border-right:2px solid #c5c3a8;
border-bottom:2px solid #c5c3a8;
margin-top:80px;
background-color:#edebca;
}
#tresc {
width:547px;
height:746px;
background-color:#f3f4e8;
border-left:2px solid #c5c3a8;
border-right:2px solid #c5c3a8;
border-bottom:2px solid #c5c3a8;
margin-left:auto;
margin-right:auto;
}
#nawigacja {
width:184px;
height:32px;
border-top:2px solid #c5c3a8;
border-left:2px solid #c5c3a8;
border-right:2px solid #c5c3a8;
border-bottom:2px solid #c5c3a8;
background-color:#edebca;
margin-left:15px;
margin-top:-784px;
}
#nawigacja_tresc {

border-left:2px solid #c5c3a8;
border-right:2px solid #c5c3a8;
border-bottom:2px solid #c5c3a8;
width:184px;
height:348px;
background-color:#f3f4e8;
margin-left:15px;

}
#zbiorka {
width:184px;
height:32px;
border-top:2px solid #c5c3a8;
border-left:2px solid #c5c3a8;
border-right:2px solid #c5c3a8;
border-bottom:2px solid #c5c3a8;
background-color:#edebca;
margin-left:15px;
margin-top: 10px;
}
#zbiorka_tresc {

border-left:2px solid #c5c3a8;
border-right:2px solid #c5c3a8;
border-bottom:2px solid #c5c3a8;
width:184px;
height:200px;
background-color:#f3f4e8;
margin-left:15px;

}
#user {
width:184px;
height:32px;
border-top:2px solid #c5c3a8;
border-left:2px solid #c5c3a8;
border-right:2px solid #c5c3a8;
border-bottom:2px solid #c5c3a8;
float:right;
background-color:#edebca;
margin-top:-635px;
margin-right:15px;
}
#user_tresc {
border-left:2px solid #c5c3a8;
border-right:2px solid #c5c3a8;
border-bottom:2px solid #c5c3a8;
width:184px;
height:218px;
float:right;
background-color:#f3f4e8;
margin-top:-599px;
margin-right:15px;

}
#menu4 {
width:184px;
height:32px;
border-top:2px solid #c5c3a8;
border-left:2px solid #c5c3a8;
border-right:2px solid #c5c3a8;
border-bottom:2px solid #c5c3a8;
float:right;
background-color:#edebca;
margin-top:-404px;
margin-right:15px;
}
#menu4_tresc {
border-left:2px solid #c5c3a8;
border-right:2px solid #c5c3a8;
border-bottom:2px solid #c5c3a8;
width:184px;
height:216px;
float:right;
background-color:#f3f4e8;
margin-top:-368px;
margin-right:15px;
}
#menu5 {
width:184px;
height:32px;
border-top:2px solid #c5c3a8;
border-left:2px solid #c5c3a8;
border-right:2px solid #c5c3a8;
border-bottom:2px solid #c5c3a8;
float:right;
background-color:#edebca;
margin-top:-136px;
margin-right:15px;
}
#menu5_tresc {
border-left:2px solid #c5c3a8;
border-right:2px solid #c5c3a8;
border-bottom:2px solid #c5c3a8;
width:184px;
height:216px;
float:right;
background-color:#f3f4e8;
margin-top:-100px;
margin-right:15px;
}

I jeszcze jeden problem :
Czemu gdy zmienie chodź jeden margines zmienia mi się układ całej strony ?