Gwloto's language features supplement the base CMS language features. For complete multilingual support, you will need to install the appropriate language pack(s) for your CMS. The CMS language support is built on language folders. With the main CMS directory, there is a "language" folder. Inside that is an "english" folder which contains files defining all the phrases used in the base CMS in the English language. If you want to add, for example, español, you will be adding an additional folder, "spanish" which will include the phrases in that language. In addition to the base CMS, each installed module also has a "language" directory following the same structure.