Si basta scaricare la premod 3.0.12 da quì:
http://www.phpbbitalia.net/forum/downlo ... l&df_id=45
e nella cartella contrib trovi la lista dei file differenti.
questi:
Changed files between phpBB 3.0.12 and phpBB SEO 3.0.12
adm/style/admin.css
common.php
download/file.php
includes/acm/acm_memcache.php
includes/acp/acp_groups.php
includes/acp/acp_profile.php
includes/acp/acp_update.php
includes/auth/auth_db.php
includes/constants.php
includes/db/dbal.php
includes/functions.php
includes/functions_admin.php
includes/functions_content.php
includes/functions_display.php
includes/functions_posting.php
includes/search/fulltext_native.php
includes/session.php
includes/utf/utf_tools.php
index.php
language/en/common.php
language/en/search_ignore_words.php
memberlist.php
posting.php
search.php
styles/prosilver/template/attachment.html
styles/prosilver/template/editor.js
styles/prosilver/template/forum_fn.js
styles/prosilver/template/forumlist_body.html
styles/prosilver/template/overall_footer.html
styles/prosilver/template/overall_header.html
styles/prosilver/template/posting_editor.html
styles/prosilver/template/search_body.html
styles/prosilver/template/simple_header.html
styles/prosilver/template/viewforum_body.html
styles/prosilver/template/viewtopic_body.html
styles/prosilver/theme/common.css
styles/prosilver/theme/print.css
styles/subsilver2/template/attachment.html
styles/subsilver2/template/editor.js
styles/subsilver2/template/forumlist_body.html
styles/subsilver2/template/login_body.html
styles/subsilver2/template/overall_footer.html
styles/subsilver2/template/overall_header.html
styles/subsilver2/template/posting_body.html
styles/subsilver2/template/search_body.html
styles/subsilver2/template/simple_header.html
styles/subsilver2/template/viewforum_body.html
styles/subsilver2/template/viewtopic_body.html
styles/subsilver2/theme/stylesheet.css
viewforum.php
viewonline.php
viewtopic.php
web.config
Tieni conto che dopo dovrai riapplicare tutte le mod che hai adesso. Trattandosi di un forum con ancora pochissimi messaggi ti consiglio di reinstallare tutto da capo, direttamente con la premod, in modo da avere la certezza che tutto sia perfetto.