plz help unlock asus k53sd bios

hii all i have ben loking for a k53sd moded bios for a few days now and all i find is dead threads and dead links....
i need to overclock because i modified the hole laptop removed pretty much every thing but the harddisk,ram memorys and wifi.
added a big 12v fan...new thermal paste... so is much coller now i figured with a bit of overclocking i can play stuff like asc black flag:)with more then 10 fps....
so plz help me...

http://dlcdnet.asus.com/pub/ASUS/nb/K53S...DAS208.zip - original