i have used friendly urls on older dnn with no problems but now new dnn installation and it's a dnn 4.8 something and i can't figure it out

 the link looks like this

http://riagroup.ru/AboutUs/tabid/56/language/ru-RU/Default.aspx

 i want it to be http://riagroup.ru/AboutUs.aspx

infact both liks work but i want it to show in address bar !!! how to make it ?

I did add a part in web.config, friendly URLs are checked in host settings, and in languages both chack marks are unchecked ( it should not show language in adress bar and should not recognise language by itself)

please help what else should I do ?