Support for multilanguage sites, Internationalization (I18N)

[xxdex]

i have a htacces:

PHP Code:

RewriteEngine on

RewriteBase /
RewriteRule ^(cz|du|en|fr)/(.*?/)?([A-Za-z0-9-]+)/?$ index.php?id=$3&lang=$1 [QSA,L]
RewriteRule ^(cz|du|en|fr)/?$ index.php?lang=$1 [QSA,L]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule /?([A-Za-z0-9_-]+)/?$ index.php?id=$1 [QSA,L] 


i think (i hope ) than he is correct..
but questions are:

why when in the breadcrumbs i have a:
home » Oferta » Wyroby Hutnicze » Blachy zimnowalcowane » Tabela przeliczeniowa mas

and in adres is only:
domain.pl/blachy-zimnowalcowane/tabela-przeliczeniowa-mas-1/
in the menu i have
Oferta
L Wyroby hutnicze
-L Blachy zimnowalcowane
--L Tabela przeliczeniowa mas
Kontakt
Galeria
so.. where in fancy urls ? is a "oferta" menu ?

seccond question:
is a possible to get in different language different fancy urls in other lang ?
in polish i have:
domain.pl/blachy-zimnowalcowane/tabela-przeliczeniowa-mas-1/

and i want to get in english:
domain.pl/en/sheet-rolled/Table-conversion-mas-1/
its possible to do it with a i18NNavigation?

i'm working on:
https://dl.dropboxusercontent.com/u/4998...ing_on.jpg
there is not so small page in two different language..