If you are proficient with German you may want to try installing the German version of ASL. It seems that version should include German text for those messages.
Well, there used to be a German version, but now that I have checked the FTP server it does not show the German ISO for V5. What about selecting the German language during install, that should have the same effect. I have not tested this as I am unfamiliar with German and do my installs and configuration only in English and do not have a language barrier with clients.
There is no german language software package at all. During installation, you have to define the keyboard settings and the time zone, not the language of the WebAdmin. /bagira
