Important: This can only be done by the albums' administrator, because you have to do changes in a core template, called "BreadCrumb.tpl"!
Here is a step by step guide which descipes how to remove the root album link. Removing the root album link is a good idea if you want visitors of a users' album not to get outside of this album.
Step by step:
1. First create new subdir "local" in "gallery2/modules/core/templates/blocks/".
2. Copy BreadCrumb.tpl to this new subdir
3. Change local/BreadCrumb.tpl in the following way:
{*
* $Revision: 1.4 $
* If you want to customize this file, do not edit it directly since future upgrades
* may overwrite it. Instead, copy it into a new directory called "local" and edit that
* version. Gallery will look for that file first and use it if it exists.
*}
{*
* Go through each breadcrumb and display it as a link.
*
* G2 uses the highlight id to figure out which page to draw when you follow the
* breadcrumbs back up the album tree. Don't make the last item a link.
*}
<div class="{$class}">
{section name=parent loop=$theme.parents}
{if !$smarty.section.parent.last}
{if !$smarty.section.parent.first}
<a href="{g->url arg1="view=core.ShowItem" arg2="itemId=`$theme.parents[parent].id`"
arg3="highlightId=`$theme.parents[parent.index_next].id`"}"
class="BreadCrumb-{counter name="BreadCrumb"}">
{$theme.parents[parent].title|default:$theme.parents[parent].pathComponent|markup:strip}</a>
{if isset($separator)} {$separator} {/if}
{else}
{* further in sub-album tree*}
{/if}
{else}
{if $smarty.section.parent.first}
{* first sub-album*}
{else}
<a href="{g->url arg1="view=core.ShowItem" arg2="itemId=`$theme.parents[parent].id`"
arg3="highlightId=`$theme.item.id`"}"
class="BreadCrumb-{counter name="BreadCrumb"}">
{$theme.parents[parent].title|default:$theme.parents[parent].pathComponent|markup:strip}</a>
{if isset($separator)} {$separator} {/if}
{/if}
{/if}
{/section}
{if ($theme.pageType == 'admin' || $theme.pageType == 'module')}
<a href="{g->url arg1="view=core.ShowItem"
arg2="itemId=`$theme.item.id`"}" class="BreadCrumb-{counter name="BreadCrumb"}">
{$theme.item.title|default:$theme.item.pathComponent|markup:strip}</a>
{else}
<span class="BreadCrumb-{counter name="BreadCrumb"}">
{$theme.item.title|default:$theme.item.pathComponent|markup:strip}</span>
{/if}
</div>