Pokemon Black and White: Any tips for the Masuda method?

Basically, your doing it right. The Masuda method just requires ANY pokemon that isn't from your geological region(IE a Pokemon traded from a game in Europe to a game in America or Japan would work for the Masuda method.) It is not necessary to have a ditto. Also, you gotta remember that the chance is still only 1 in a little over 2000, so the chances are still horrible. They may be much better, but horrible nonetheless