This impossible because all data is stored on freichat.com

To update ElggChat, you should ask the developers or try to learn Elgg yourself.

ok thanx

Thank you but translation isn't the issue.

Tab Titles....the tabs at the top of the browser with the title of the page. instead of  "Terms of use" it reads <title>NetCare algemene voorwaarden</title>... instead of "Privacy" it reads <title>Privacy beleid</title> .....Instead of "About" it reads <title>Over Elgg</title>.

I know how to change them if I could find them. So if anyone knows where I can find them I would appreciate them letting me know. Thank You

Seems, you installed some plugin that redefines the titles.
Use Translation editor plugin, e.g.:
- find 'NetCare algemene voorwaarden' and rename string for your language

Thank you Nikolai, got it fixed.