style.css
#leftblock_title {
background-image: url(lftblk_title.gif); /*your menu.gif */
background-repeat: no-repeat;
color: #000;
border: 0px solid #999;
padding: 0px 0px 0px 0px;
text-align: center;
font-weight: bold;
}
This will be the background image that repeats:
#leftblock_content {
background-image: url(lftblk_title.gif); /*your menu.gif */
background-repeat: repeat-y;
color: #000;
border: 0px solid #999;
padding: 0px 0px 0px 0px;
text-align: center;
font-weight: bold;
}
#leftblock_bottom {
background-image: url(lftblk_title.gif); /*your menu.gif */
background-repeat: no-repeat;
}
you will likely have to fine tune the above, but it should work fine.