Says this here:
1) Click the scrolling page looking icon below the print icon in the top right (the settings menu)
2) Click Sprachauswahl (6th option down in the menu)
2) Click Englisch
http://forums.vwvortex.com/showthread.php?3209008-How-to-change-the-language-on-ETKA
more heref:
http://z13.invisionfree.com/OneTrueKeyboard/ar/t66.htm
bob
On Jan 2, 2013, at 7:01 AM, Bob MacDowell <yakandhike@GMAIL.COM> wrote:

      I got the etka manual from someone at a camp out and down loaded it
to my laptop. I have been trying for over a year now to change the language
to English and have been unsuccessful. Does anybody know how to change the
language. Its in the original German lingo now. Thanks Bob Mac