For non english boards open after you uploaded the files and viewed the admin panel from nuseo for the first time (www.yoursite.com/nuseo/admin/)
nuseo_config.php

Find
		// Non-English Character Translation Map
		$nuseo_config[ 'special_chars_map' ] = array( 			'' => 'a',
			'' => 'a',
			'' => 'a',
			'' => 'a',
			'' => 'ae',
			'' => 'Ae',
			'' => 'a',
			'' => 'a',
			'' => 'a',
			'' => 'a',
			'' => 'e',
			'' => 'e',
			'' => 'e',
			'' => 'e',
			'' => 'e',
			'' => 'e',
			'' => 'e',
			'' => 'e',
			'' => 'i',
			'' => 'i',
			'' => 'i',
			'' => 'i',
			'' => 'i',
			'' => 'i',
			'' => 'i',
			'' => 'i',
			'' => 'o',
			'' => 'o',
			'' => 'o',
			'' => 'oe',
			'' => 'Oe',
			'' => 'o',
			'' => 'o',
			'' => 'o',
			'' => 'o',
			'' => 'u',
			'' => 'u',
			'' => 'u',
			'' => 'u',
			'' => 'ue',
			'' => 'Ue',
			'' => 'u',
			'' => 'u',
			'' => 'c',
			'' => 'c',
			'' => 'n',
			'' => 'n',
			'' => 'ss',
);


and replace with

		// Non-English Character Translation Map
		$nuseo_config[ 'special_chars_map' ] = array( 			'' => 'a',
			'' => 'b',
			'' => 'v',
			'' => 'g',
			'' => 'd',
			'' => 'i',
			'' => 'j',
			'' => 'c',
			'' => 'i',
			'' => 'i',
			'' => 'k',
			'' => 'l',
			'' => 'm',
			'' => 'n',
			'' => 'o',
			'' => 'p',
			'' => 'g',
			'' => 's',
			'' => 't',
			'' => 'u',
			'' => 'f',
			'' => 'h',
			'' => 'o',
			'' => 'ch',
			'' => 'sh',
			'' => 'sh',
			'' => 'u',
			'' => 'y',
			'' => 'u',
			'' => 'i',
			'' => 's',
			'' => 'i',
			'' => 'a',
			'' => 'b',
			'' => 'v',
			'' => 'g',
			'' => 'd',
			'' => 'e',
			'' => 'j',
			'' => 'c',
			'' => 'i',
			'' => 'i',
			'' => 'k',
			'' => 'i',
			'' => 'm',
			'' => 'n',
			'' => 'o',
			'' => 'p',
			'' => 'r',
			'' => 's',
			'' => 't',
			'' => 'u',
			'' => 'f',
			'' => 'h',
			'' => 'ts',
			'' => 'sh',
			'' => 'sh',
			'' => 'u',
			'' => 'y',
			'' => 'u',
			'' => 'i',
			'' => 's',
			'' => 'ss',
);



Save in ANSI format and reupload the file.
Thats it.. (testet german and turkish websites)