2. Procure por:
</head>3. Logo abaixo do que você achou, cole:
/*********************************************NIVO SLIDER POR CHERRY BOMB*********************************************/4. Mude as partes destacadas e depois salve.
<style type="text/css">
/* <![CDATA[ */
#w2bSlideContainer {position: relative;display: block; top:0px; left:0px; right:0px; /* ajuste a posição do slide */}
#w2bNivoSlider { position:relative;
width: 640px !important; /* largura do slide */ height: 300px !important; /* altura do slide */
background: #fff url("https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhPiXRwSVHKa8AvbtbROeRwEpU2efcaa5lGI0fhwncL2qJQ33awRGrU8NsDkmzsysWWwm4GNU57YNNROjxYAmQTJS0EmC2UeTiifewdoYZgyLjwOUymLWUNdxAuaGeTuAcnUPoAnYZGumn/s1600/w2bLoader.gif") no-repeat 50% 50%;
margin: 20px auto 35px;
border: 3px solid #000; /* coloque borda se quiser */ }
#w2bNivoSlider img {position:absolute; top:0; left:0; display:none}
.nivoSlider {position:relative;width:100%;height:auto;}
.nivoSlider img {position:absolute;top:0;left:0}
.nivo-main-image {display:block!important;position:relative!important;width:100%!important}
.nivoSlider a.nivo-imageLink {position:absolute;top:0;left:0;width:100%;height:100%;border:0;padding:0;margin:0;z-index:6;display:none}
.nivo-slice {display:block;position:absolute;z-index:5;height:100%;top:0}
.nivo-box {display:block;position:absolute;z-index:5;overflow:hidden}
.nivo-box img {display:block}
.nivo-caption {padding: 5px;
font-family: arial,sans-serif;position:absolute; /*Fonte da legenda*/Font-size: 14px; /*Tamanho da fonte da legenda*/background:#000; /*Cor de fundo da legenda*/color:#fff; /*Cor do texto da legenda*/-ms-filter:"alpha(opacity=80)";filter:alpha(opacity=80);opacity:.8; width: NÚMEROpx;/*Largura da legenda*/ z-index:8;}
.nivo-caption p {padding:2px;margin:0}
.nivo-caption a {display:inline!important}
.nivo-html-caption {display:none}
.nivo-directionNav a {position:absolute;top:45%;z-index:9;cursor:pointer;display:block;width:30px;height:30px;
background: url("URL_IMG_SETA") no-repeat;text-indent:-9999px;border:0}
.nivo-prevNav {left:10px}
.nivo-nextNav {background-position:-30px 0!important;right:10px}
.nivo-controlNav {position:absolute;left:0;right:0;bottom:-35px;text-align:center}
.nivo-controlNav a {position:relative;z-index:9;cursor:pointer;display:inline-block;width:22px;height:22px;
background:url("URL_IMG_BULLETS") no-repeat;text-indent:-9999px;border:0;margin-right:3px}
.nivo-controlNav a.active {font-weight:bold;background-position:0 -22px}
/* ]]> */
</style>
<script src='http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js' type='text/javascript'/>
<script src='http://static.tumblr.com/y66747w/9hlmdpcpa/nivoslider.js' type='text/javascript'/>
<script type='text/javascript'>
/* <![CDATA[ */
jQuery(document).ready(function($) {
$('#w2bNivoSlider').nivoSlider({
effect : 'random',
slices : 10,
boxCols : 8,
boxRows : 4,
animSpeed : 500,
pauseTime : 4000,
startSlide : 0,
directionNav : true,
directionNavHide : true,
controlNav : true,
keyboardNav : false,
pauseOnHover : true,
captionOpacity : 0.8
});
});
/* ]]> */
</script>
/*********************************************NIVO SLIDER POR CHERRY BOMB*********************************************/
5. Vá em Layout > Adicionar um gadget > HTML/Javascript e cole:
<div id="w2bSlideContainer">6. Salve.
<div id="w2bNivoSlider">
<a href="LINK_DO_SLIDE_1"><img src="URL_DA_IMAGEM_1" title="LEGENDA DA IMAGEM 1"/></a>
<a href="LINK_DO_SLIDE_2"><img src="URL_DA_IMAGEM_2" title="LEGENDA DA IMAGEM 2"/></a>
<a href="LINK_DO_SLIDE_3"><img src="URL_DA_IMAGEM_3" title="LEGENDA DA IMAGEM 3"/></a>
<a href="LINK_DO_SLIDE_4"><img src="URL_DA_IMAGEM_4" title="LEGENDA DA IMAGEM 4"/></a>
</div>
</div>
OBS.: Se quiser colocar a setinha e/ou os bullets, clique aqui e veja uns modelos postados pela Liah.
SE USAR DÊ OS DEVIDOS CRÉDITOS AO BLOG CHERRY BOMB.