You could try the german language forum at renderotica. There are poser users who can answer questions and who are native german speakers. 

There is also a german forum here at renderosity    :)

You can post here , in german and see who answers, some people use Google language tools or babelfish to translate.  

Smith micro would be the contact for information on Poser 8 in german. 

or try this link http://www.geekatplay.com/phpbb/viewtopic.php?f=14&t=2035