Since MikeJ mentioned asking my permission: as far as I am concerned, you don't need to do that. Simply put, there are only two rules: say where you got the original from (the preliminary "official" site, http://sites.google.com/site/antoniapolygon/, is now up and has a download link) and say which changes you've made if any.

-- I'm not mad at you, just Westphalian.