As of v1.2 there is a ‘language selector’ build into the plugin. This means that you can simply select the language you want to use. (the pluginoptions themselves will not be translated!). Adding new languages is easy: If you downloaded a new language simply upload that folder (by example ‘french’) to mynewsletter/lang/, then edit the options of the plugin (by choosing ‘edit options’ in the Nucleus Admin Area) and refresh the page (using the refresh button of your browser or simply <F5>). MyNewsletter will then auto-detect the new language and add it to the select-box. Adding or modifying your own language is also easy: copy an existing language directory, rename it and edit the files. (if you made a translation for a language which is not yet provided with the plugin please give a shout so i can include it in the next release of the plugin!)