Hi Viktor! I'm not exactly sure of what/where you are experiencing problems so here comes a quick explanation of how this generally works. First of all you have to turn on the multi language gui. This can be done under settings in admin mode. When you have done that you might want to activate/deactivate languages (also in admin mode). In edit mode you should now have a language selection tool under the page tree. This is used to select the language that should be shown in the page tree as well as the default language when creating/editing a page. When you edit a page it's also possible to change the language for the page in the right top corner of the edit panel. Links in view mode should always be relative to the current page if you have the url rewrite module activated (friendly url) so links should always stay in the same language unless speficied otherwise directly. Are these not working for you?