Aew galera aki vai o que mtos estavam precisando, o Famoso subir pagina ! 

1°) Copiei o abaixo : 

Código css:

#scrollToTop:link,#scrollToTop:visited { color: transparent; background-color: transparent; display: none; position: fixed; top: 15px; right: 15px;}

Script:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script><script src="https://static.tumblr.com/ikeq9mi/DfYl6o46t/scrolltotop.min.js"></script><a href="javascript:;" id="scrollToTop"><img src="https://2.bp.blogspot.com/-sS7udenTEqg/TbTdNn_38bI/AAAAAAAAAgA/nXuTmNDpxHY/s288/setaw.png" border="0"></a>

2°) Cole em Personalizar template :P e pronto