Hello,
anyone could help me to makes different prefix/suffix in url ?
I was converted from phpbb2 to phpbb3.

example in france board:
-----------------------------------------------------------
old Forum: forum-1-what_isthis
old Forum: forum-5-trading
old Forum: forum-20-motivation_life

old Topic: sujet-3454-how_to_make_airplane
old Topic: sujet-100-help_me_find_this

old Last post: sujet-msg-21651#21651
old Last post: sujet-msg-3940#3940

old Topic list page navigation: forum-1-what_isthis-150
old Topic list page navigation: forum-1-what_isthis-250
old Topic list page navigation: forum-5-trading-150
old Topic list page navigation: forum-5-trading-300

how to get same URI ?

I have been take a look into phpbb_seo_class.php but I couldnt make right changes

Thank you