Playing video games allowed me to learn English witch helped and keeps helping me a lot in my life. I often see foreign people who cannot speak English because they translate everything in their native language. So I would take advantage of this and us it to improve your English .
Nostalrius is an international server but uses English as the standard language. Changing the main page to any other language isn't an option. Perhaps you can find a web browser that will auto-translate the page for you.
Please report any issues you have to the Bugtracker