So a couple of things, first information on Wikipedia has to be from a reliable source. Normally that means that it has to come from a third party and not actually from the clubs own websites. Certain things can be used from first person sources but most can't and you really need to get it from either Stuff, NZ Herald or http://www.ultimatenzsoccer.com/ (ScouseKiwi website). For a list of reliable sources for football, you can view them here https://en.wikipedia.org/wiki/Wikipedia:WikiProject_Football/Links TheJourneyFan site isn't seen as reliable due to being a blog, but if you want to argue it is, you can take that up on with Wikipedia:WikiProject_Football.
Oral Information (or as Wikipedia calls it, original research) is not allowed, so even if you know the information to be true. It can't be added unless it comes from a reliable source. This is why most pages will basically be stubs and shouldn't have such stuff has historys/team lists etc because they can't be verified. Most newspapers don't write the team lists or history of clubs.
Lastly, Hi - Im NZFC on Wikipedia and have come across you already on the Stop Out page and the NZ Football page.