how can i do that??... yes i know i'm a noob but try a lots of things and i dont know wtf im doing.... 
thanks in advance
just look for the static void interleave_pdata() and static void do_neopvc(int game) functions inside kof2003's driver. you can paste them before all the drivers in d_neogeo.cpp, besides it works with them inside the driver but you can have problems in the futures adding other pcb romsets...
