.jcarousel-skin-tango .jcarousel-direction-rtl .jcarousel-next-horizontal {
    left: 10px;
    right: auto;
    background-image: url(../images/prev-horizontal.gif);
}

.jcarousel-skin-tango .jcarousel-direction-rtl .jcarousel-prev-horizontal {
    left: auto;
    right: 10px;
    background-image: url(../images/next-horizontal.gif);
}