Можно поставить плагин для транслитерации псевдонимов:_http://yurivolkov.com/Joomla/yvTransliterate/index_ru.html
Или внести изменения вручную в файле www.mysite.ru\libraries\joomla\database\table\content.php.
В строке 125 заменить код вставки даты в псевдоним(alias):
if(trim(str_replace('-','',$this->alias)) == '') {
$datenow =& JFactory::getDate();
$this->alias = $datenow->toFormat("%Y-%m-%d-%H-%M-%S");
}
На свою функцию транслитерации. Чисто для примера:
if(trim(str_replace('-','',$this->alias)) == '') {
$tr = array(
"А"=>"a","Б"=>"b","В"=>"v","Г"=>"g",
"Д"=>"d","Е"=>"e","Ж"=>"j","З"=>"z","И"=>"i",
"Й"=>"y","К"=>"k","Л"=>"l","М"=>"m","Н"=>"n",
"О"=>"o","П"=>"p","Р"=>"r","С"=>"s","Т"=>"t",
"У"=>"u","Ф"=>"f","Х"=>"h","Ц"=>"ts","Ч"=>"ch",
"Ш"=>"sh","Щ"=>"sch","Ъ"=>"","Ы"=>"yi","Ь"=>"",
"Э"=>"e","Ю"=>"yu","Я"=>"ya","а"=>"a","б"=>"b",
"в"=>"v","г"=>"g","д"=>"d","е"=>"e","ж"=>"j",
"з"=>"z","и"=>"i","й"=>"y","к"=>"k","л"=>"l",
"м"=>"m","н"=>"n","о"=>"o","п"=>"p","р"=>"r",
"с"=>"s","т"=>"t","у"=>"u","ф"=>"f","х"=>"h",
"ц"=>"ts","ч"=>"ch","ш"=>"sh","щ"=>"sch","ъ"=>"y",
"ы"=>"yi","ь"=>"","э"=>"e","ю"=>"yu","я"=>"ya",
" "=>"-","!"=>"","?"=>"",","=>"","."=>"",
);
$this->title = trim($this->title," ");
$this->alias = strtr($this->title,$tr);
}
Затем сохранить файл в кодировке UTF-8 without BOM.