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# Arquivo retirado de www.fabioricotta.com
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#
# Descrição: alteração para português da data do 
# plugin ifyoulikedthat.
#
###################################################

Abra o arquivo if_you_liked_that.php

Vá até a linha 64:
$ifYouLikedThatsHTML .= '<p><a href="'.get_permalink($ifYouLikedThat->ID).'">'.$ifYouLikedThat->post_title.'</a> em '.date('j F, Y',strtotime($ifYouLikedThat->post_date)).$postSentence.'</p>';

Substitua esta linha por:

setlocale (LC_ALL, 'pt_BR');
$ifYouLikedThatsHTML .= '<p><a href="'.get_permalink($ifYouLikedThat->ID).'">'.$ifYouLikedThat->post_title.'</a> em '.date('j \\d\e ',strtotime($ifYouLikedThat->post_date)).utf8_encode(ucwords(strftime('%B',strtotime($ifYouLikedThat->post_date)))).date(', Y',strtotime($ifYouLikedThat->post_date)).'</p>';