Its working fine, you get used to crappy packs, except skills with hitTime < 500 there is a problem. You can always lower the hitTime and more or less its gonna be fine.
If the mail has not been changed, you can use recovery option. I send you on pm the mail that's already in use at that acc. If it's leit, you know what to do :P
UnrealEngine, and l2encdec to encrypt the file later, so it's gonna work, otherwise you will get an critical error. Check the Client section, youcan find here few guides about that. By virus or iAndre.
If your client already contains the icon, you can change it @ skillgrp file. Else, you have to create the icon and import it into your client, .utx file.
Moved to client.