Okay, thanks for that link. Unfortunately, your codes are exactly the same as I described, for each location you have two Aipom codes rather than an Aipom and a Wurmple. I don't understand (and thus, my question is) why two different codes work for one Pokemon and there isn't a code in existance for the other one.
And along the lines of your codes not working - well, they do, because like I said they're identical to the one I posted, but you have them labelled wrong. You have genders on them, like, "Get Cherubi Female", "Get Combee Male", etc. The gender and everything else about the Pokemon is random, the code only dictates the species and which tree it'll be. I know nothing about making codes, I just know that when I used it I was able to use it two or three times in a row and capture both genders just fine. You (or whoever wrote the entries) I guess just wrote down with gender it gave them on the first use without realising it wasn't related.
Also, I see you said in your thread that you have hardly looked at the codes for the EU version. Again, I know nothing about making codes, but I've been using them on Platinum for about a month now and pretty much every code I've used has been for the US version. The codes are different, as far as I know, for each of the foreign language versions (French, German etc), but the English EU one doesn't need different codes as far as I can tell. Hope that makes your job a little easier.