for 1.
I've already known how to delete stuffs in CUST_THEME.big by WinImage. I mean edit directly in the .KDZ one.
for 2.
Extract the CUST_Theme.big from .kdz by using KM555.flb and KM555 utils with Option I, right?.. Let me try.
Let me pm tamthangia to ask for help.
Thanks alot anyway.