Web Forms :: MenuItem Having Different Images For Each Item?

im developing my first website in asp.net 3.5 using images or icons as menuitems.

What i want to know is how to use different images (I created images in fireworks JPG) for each menu items.

i have images for about,home,help,contact us,.How can i place it through CSS in each menuitem horizantel

i have images for hover n selected to...but placement is problem through CSS .

my CSS:

div.Menu123
{
margin: 0px;
height: 85px;
width: 500px;
position: relative;
z-index: 2;
top: 0px;
left: 400px;
right: auto;
}
.MyMenu a
{
background-image: url('../Images/Styles&Buttons/About.jpg');
background-repeat: no-repeat;
}
.MyMenuhover a
{
background-image: url('../Images/Styles&Buttons/AboutHover.jpg');
background-repeat: no-repeat;
}