Css kodu hakkında bir soru

Wordpress tabanlı blogumda Internet Explorer7'de Üst menü,Ara butonunun üzerinde Ara yazısı,Anket bölümündeki Oyla butonunun üzerindeki Oyla yazısı çıkmıyor.Halbuki Google Chrome'la girdiğimde herhangi bir sorun yok.
Acaba aşağıdaki kodlarda IE7'nin desteklemediği birşey mi var?
Bu durumu nasıl düzeltebilirim?

//Üst Menunun Kodu
#nav {width:939px;height:44px;}
#ustmenu {background-image: url("images/ustmenu.png");width:557px;height:36px;float:left;padding-left:30px;padding-top:8px;}
#ustmenu ul {margin-left: 0;padding-left: 0;display: inline;border: none;margin:0;padding:0;padding-left:20px;}
#ustmenu ul li {margin: 0;padding: 0;border: none;list-style: none;display: inline;float:left;}
#ustmenu ul li.m1 a{background-image: url("images/nav.png");background-repeat:no-repeat;background-position:0px -35px;display:inline-block;text-indent:-9999px;width:104px;height:35px;}
#ustmenu ul li.m2 a{background-image: url("images/nav.png");background-repeat:no-repeat;background-position:-104px -35px;display:inline-block;text-indent:-9999px;width:108px;height:35px;}
#ustmenu ul li.m3 a{background-image: url("images/nav.png");background-repeat:no-repeat;background-position:-212px -35px;display:inline-block;text-indent:-9999px;width:129px;height:35px;}
#ustmenu ul li.m4 a{background-image: url("images/nav.png");background-repeat:no-repeat;background-position:-341px -35px;display:inline-block;text-indent:-9999px;width:76px;height:35px;}
#ustmenu ul li.m5 a{background-image: url("images/nav.png");background-repeat:no-repeat;background-position:-417px -35px;display:inline-block;text-indent:-9999px;width:98px;height:35px;}
#ustmenu ul li.m1 a:hover{background-position:0px 0px;}
#ustmenu ul li.m2 a:hover{background-position:-104px 0px;}
#ustmenu ul li.m3 a:hover{background-position:-212px 0px;}
#ustmenu ul li.m4 a:hover{background-position:-341px 0px;}
#ustmenu ul li.m5 a:hover{background-position:-417px 0px;}

//Ara butonu ve "ara" yazısının kodu
#arabas {float:left;}
#arabas .buton {border:none;margin-top:10px;margin-left:8px;background-image: url("images/ara.png");background-repeat:no-repeat;width:54px;height:31px;cursor:pointer}
#arabas .buton:hover {background-image: url("images/ara.png");background-repeat:no-repeat;background-position:0px -31px;width:54px;height:31px;cursor:pointer}

//Oyla butonu ve "oyla" yazısının kodu
#anketbas {float:right;}
#anketbas .buton {border:none;margin-right:18px;background-image: url("images/oyla.png");background-repeat:no-repeat;width:54px;height:31px;cursor:pointer}
#anketbas .buton:hover {background-image: url("images/oyla.png");background-repeat:no-repeat;background-position:0px -31px;width:54px;height:31px;cursor:pointer}

bunu denermisin

#ustmenu {
background-image : url("images/ustmenu.png");
width : 557px;
height : 36px;
float : left;
padding-top : 8px;
}
#ustmenu ul {
margin-left : 0;
padding-left : 0;
display : inline;
border : none;
margin : 0;
padding : 0;
padding-left : 20px;
}
#ustmenu ul li {
margin : 0;
padding : 0;
border : none;
list-style : none;
display : inline;
float : left;
}
#ustmenu ul li.m1 a {
background-image : url("images/nav.png");
background-repeat : no-repeat;
background-position : 0 -35px;
display : inline-block;
text-indent : -9999px;
width : 104px;
height : 35px;
}
#ustmenu ul li.m2 a {
background-image : url("images/nav.png");
background-repeat : no-repeat;
background-position : -104px -35px;
display : inline-block;
text-indent : -9999px;
width : 108px;
height : 35px;
}
#ustmenu ul li.m3 a {
background-image : url("images/nav.png");
background-repeat : no-repeat;
background-position : -212px -35px;
display : inline-block;
text-indent : -9999px;
width : 129px;
height : 35px;
}
#ustmenu ul li.m4 a {
background-image : url("images/nav.png");
background-repeat : no-repeat;
background-position : -341px -35px;
display : inline-block;
text-indent : -9999px;
width : 76px;
height : 35px;
}
#ustmenu ul li.m5 a {
background-image : url("images/nav.png");
background-repeat : no-repeat;
background-position : -417px -35px;
display : inline-block;
text-indent : -9999px;
width : 98px;
height : 35px;
}
#ustmenu ul li.m1 a:hover {
background-position : 0 0;
}
#ustmenu ul li.m2 a:hover {
background-position : -104px 0;
}
#ustmenu ul li.m3 a:hover {
background-position : -212px 0;
}
#ustmenu ul li.m4 a:hover {
background-position : -341px 0;
}
#ustmenu ul li.m5 a:hover {
background-position : -417px 0;
}
#arabas .buton {
border : none;
margin-top : 10px;
margin-left : 8px;
background-image : url("images/ara.png");
background-repeat : no-repeat;
width : 54px;
height : 31px;
cursor : pointer;
}
#arabas .buton:hover {
background-image : url("images/ara.png");
background-repeat : no-repeat;
background-position : 0 -31px;
width : 54px;
height : 31px;
cursor : pointer;
}
#anketbas .buton {
border : none;
margin-right : 18px;
background-image : url("images/oyla.png");
background-repeat : no-repeat;
width : 54px;
height : 31px;
cursor : pointer;
}
#anketbas .buton:hover {
background-image : url("images/oyla.png");
background-repeat : no-repeat;
background-position : 0 -31px;
width : 54px;
height : 31px;
cursor : pointer;
}


Maalesef bir işe yaramadı :(