LOL...Thanks Noirua, for pointing out those errors. You see - mistakes can still be made even by someone like myself who was always an 'A' student in English!
Once we hit high school, English has more to do with idea and expression than spelling and grammar. Proper language skills help, but it's really the substance that counts.
I have to admit, my mind finds using a 'z' rather than a 's' (organize rather than organise) very unaesthetic.