[Victor D]

1) Logo is placed in the skin1/customer/head.tpl
just change href for the hyperlink from "home.php" to "/"

2) In skin1/customer/bread_crumbs.tpl replace the line

<a href="{$l.1|amp}" class="bread-crumb{if $smarty.foreach.location.last} last-bread-crumb{/if}">{$l.0|escape}</a>

with

<a href="{if $smarty.foreach.location.first}{$l.1|replace:"home.php":""}{else}{$l.1|amp}{/if}" class="bread-crumb{if $smarty.foreach.location.last} last-bread-crumb{/if}">{$l.0|escape}</a>