[Solved]Got problems when website was transfered form one server to another

Dear all:

I have three servers #1, #2, and #3 for web site developing and testing.
It looked fine when I worked on #1 and #2, both on FireFox 2 and IE 6.
Here's the odd thing, when I tried to implement it on server #3, it only works properly on FF2. It looks terrible on IE6.

Here's the CSS code:

/* CSS Document */
a{text-decoration: none; color: #3C56FF;}
a:visited{color: #3C56FF;}
a:hover{text-decoration: underline;}
body{
margin: 0;
padding: 0;
font: small Verdana, Arial, Helvetica sans-serif;
color: #666666;
background-color: #CCCCCC;
}
h3{
margin-top: 0;
font-size: medium;
font-weight: bold;
padding-bottom: 0.25em;
border-bottom: 2px solid #FF9E28;
}
h4{
margin-top: 0;
font-size: small;
font-weight: bold;
padding-bottom: 0.25em;
border-bottom: 1px solid #FF9E28;
}
img{
border: none;
}
input{font: small Verdana, Arial, Helvetica, sans-serif;}
ul{
margin-top: 0;
}
li{
padding: 0.25em 0;
}
table{
width: 79%;
margin-bottom: 20px;
}
table.middle{
width: 50%;
}
table.narrow{
width: 30%;
}
textarea{font: small Verdana, Arial, Helvetica, sans-serif;}
th{
border: 1px solid gray;
border-width: 0 0 1px 1px;
text-align: left;
vertical-align: bottom;
padding: 0 0.5em;
}
select{font: small Verdana, Arial, Helvetica, sans-serif;}
#total{
padding: 0;
position: relative;
width: 980px;
margin: 5px auto;
background-color: #CCCCCC;
border: solid 1px #666666;
}
#header {
position: relative;
width: 100%;
height: 69px;
background-color: #FFFFFF;
padding: 3px 0;
}
#header a{
font: 32px Verdana, Arial, Helvetica, sans-serif;
color: #990000;
}
#search {
position: absolute;
top: 20px;
right: 25px;
height: 60px;
width: 210px;
}
#nav{
position: relative;
top: 1px;
height: 23px;
width: 100%;
background-color: #FFFF00;
padding: 3px 0;
}
#nav a{
vertical-align: middle;
border-left: 1em solid #3366CC;
border-bottom: 1px solid #3366CC;
padding-left: 6px;
margin-left: 3px;
}
#nav a:hover{
text-decoration: none;
border-left: 1em solid #FF9E28;
border-bottom: 1px solid #FF9E28;
padding-left: 6px;
}
#login {
position: absolute;
top: 2px;
right: 0px;
}
#main {
position: relative;
top: 2px;
width: 100%;
min-height: 950px;
background-color: #FFFFFF;
}
/*\*/
* html #main {
height: 950px;
}
/**/
#main img{
border: none;
float: left;
}
#main h2{
font: large sans-serif, Arial, Helvetica;
font-weight: bold;
}
#main td{
border-bottom: 1px dotted gray;
padding: 0.5em 0.5em;
}
#main .excerpt{color: black;}
#main .note{
color: #5C5C5C;
padding-bottom: 1em;
}
#menu {
float: right;

width: 20%;
height: 940px;
background-color: #FFFFFF;
}
#menu ul{
list-style: none;
margin: 0 8px 0 8px;
padding: 0;
border: none;
}
#menu li{
border-bottom: 1px solid #FFFFFF;
margin: 0;
padding: 0;
vertical-align: bottom;
}
#menu table{
width: 170px;
text-align: center;
}
#menu a:link, #menu a:visited{
display: block;
padding: 5px 5px 5px 0.5em;
border-left: 12px solid #3C88FF;
border-right: 1px solid #3C88FF;
background-color: #3366CC;
color: #FFFFFF;
text-decoration: none;
}
#menu a:hover{
background-color: #FF9E28;
color: #FFFFFF;
text-decoration: none;
}
#userInfo{
position: relative;
width: 160px;
color: #FFFFFF;
background-color: #FF9E28;
margin: 0 0 10px 0;
padding: 5px;
text-align: center;
}
#footer {
position: relative;
top: 3px;
width:100%;
height: 23px;
text-align: center;
background-color: #FFFF00;
}
#round{
margin: 8px;
}
.button{
margin: 10px 0 0 10px;
}
.item{
float:left;
margin:5px;
}
.roundbox{
height: 1px;
overflow: hidden;
background-color: #FF9E28;
border-right: 5px solid #FF9E28;
border-left:5px solid #FF9E28;
}
.r1{
margin: 0 10px;
}
.r2{
margin: 0 7px;
}
.r3{
margin: 0 5px;
}
.r4{
margin: 0 4px;
}
.r5{
margin: 0 3px;
}
.r6{
margin: 0 2px;
}
.r7{
margin: 0 1px;
}
.content{
height: auto;
padding: 10px;
background-color: #FFFFFF;
}
.warning{
display: block;
background-color: red;
color: white;
text-align: center;
}


and the URL: site

Best regards.
Benson