Setting GO Diagrams

I have no understood how to use the japanese input for latex (CJK). Since I am (as hobby) translating japanese GO stuff into German, I am using the GO diagramm tool of Hanna Koloddzieska which is based on a style file from 1991. If I use this style file in japanese coded files (or UTF8 coded files) strange things happens: The file which works perfect without go.sty shows now mistakes at compiling time. Are there experst out who can help me? I have added the files so everybody can look at it (don't worry if you see no GO diagramm). Thanks in advance. -- Mit freundlichen Gruessen / Best regards Ulrich Groh