How do I manipulate the Character Creation screen? [Modern Client]

[Anubis~]

Hey!
I just want to delete some classes like the Assassin transformation, DragonWarrior and WindWalker out from my source. I've already removed them server-side but I don't like the idea of being able to select them from the client even if it won't work.
So, does anybody have an idea of how to edit the character creation screen so that I can remove the erased classes? Or even how to replace it with 5517 character creation screen?
Note that I made an attempt to replace the "characterInAndOut.swf" file in data/main directory with the equivalent one from 5517 client but it's still not working (The same old screen appears but a bit messier!).

Thanks in advance.

[- D]

data/main/flash
Copy it from old client