<div id="server_info">
<table>
<tr><td id="left_block_top">asd</td></tr>
<tr><td id="left_block_main">asd</td></tr>
<tr><td id="left_block_down">asd</td></tr>
</table>
</div>

#server_info{
    width: 200px;
    margin: 0 auto;
    padding:0px;
}
#left_block_top{
    background-image: url('../image/block_top.jpg');
    width: 200px;
    height: 50px;
}
#left_block_main{
    background-image: url('../image/block_main.jpg');
    width: 200px;
    height: 100%;
}
#left_block_down{
    background-image: url('../image/block_down.jpg');
    width: 200px;
    height: 20px;
}