I saw a few post wanting wordpress integration seem that a Japanese site has found the solution. Using google translate it is almost understandable.
I think the translation cant translate the word [sunipetsuto] which must be snippets
But here is the link to the translated version
http://www.google.com/translate?u=http%3A%2F%2Fnanabit.net%2Fmodx%2Fwordpress-integrator.html&langpair=ja%7Cen&hl=en&ie=UTF8