unfortunately that will not help because we will not be able to convert all those characters back and find the game by its name in the database.... but looks like I've found a solution:
first of all, change the pages' characterset to utf-8: in your current theme modify the block_head.html's content-type line, it must be
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
Now just make sure you've changed the .htaccess as described in the "localization" topic... and please send a copy of that file to my email (support at proarcadescript.com) - I'll check it for consistency