[Therion] Exporting lists - translation not there?

Hello again, i try to export some lists and want the titles to appear in german. for this i added "language de" to my export definition ("de_DE" is not accepted...). However, it does not do anything, the text appears still in english. What am i doing wrong? Or is the translation still missing (in which case please point me to the source, i will translate it with pleasure)? With best regards, B. Hallinger