Plugin does not run on my computer with both of CS2 and CS3,

When runnning Illustrator, Error Dialog appears.

null
java.lang.NullPointerException at com.scriptgrapher.loader.Loader.load...

I'm using Java1.6 and Windows XP SP2.

I have one guess about this problem...
Japanese Locale of Adobe Illustrator version uses different name for plugin folder. not "Plug-ins" but "プラグイン", 2byte UTF8 code is used in the name. Does it affects to you plugin?