So I just have to place this code

+show_postings_link =              show postings

in english.lang

and this code

-{if $user}<li><a href="index.php?mode=user&amp;action=edit_profile" title="{#profile_link_title#}"><strong>{$user}</strong></a></li><li><a href="index.php?mode=user" title="{#user_area_link_title#}">{#user_area_link#}</a></li>{if $admin}<li><a href="index.php?mode=admin" title="{#admin_area_link_title#}">{#admin_area_link#}</a></li>{/if}<li><a href="index.php?mode=login" title="{#log_out_link_title#}">{#log_out_link#}</a></li>{else}<li><a href="index.php?mode=login" title="{#log_in_link_title#}">{#log_in_link#}</a></li>{if $settings.register_mode!=2}<li><a href="index.php?mode=register" title="{#register_link_title#}">{#register_link#}</a></li>{/if}{if $settings.user_area_public}<li><a href="index.php?mode=user" title="{#user_area_link_title#}">{#user_area_link#}</a></li>{/if}{/if}

+{if $user}<li><a href="index.php?mode=user&amp;action=edit_profile" title="{#profile_link_title#}"><strong>{$user}</strong></a></li><li><a href="index.php?mode=user&amp;action=show_posts&amp;id={$user_id}">{#show_postings_link#}</a></li><li><a href="index.php?mode=user" title="{#user_area_link_title#}">{#user_area_link#}</a></li>{if $admin}<li><a href="index.php?mode=admin" title="{#admin_area_link_title#}">{#admin_area_link#}</a></li>{/if}<li><a href="index.php?mode=login" title="{#log_out_link_title#}">{#log_out_link#}</a></li>{else}<li><a href="index.php?mode=login" title="{#log_in_link_title#}">{#log_in_link#}</a></li>{if $settings.register_mode!=2}<li><a href="index.php?mode=register" title="{#register_link_title#}">{#register_link#}</a></li>{/if}{if $settings.user_area_public}<li><a href="index.php?mode=user" title="{#user_area_link_title#}">{#user_area_link#}</a></li>{/if}{/if}

in main.tpl