Can't extract .iffs from pangya_gb

I've already searched about and it got me thinking if it isn't because i'm using a client where all the .pak files aren't pangya_th, instead all of them are named projectgxxxgb.pak. I started this yesterday and i'm trying to get the caddies id, but when i try to extract the caddies.iff it doesn't appear where i extracted it. Sorry if this is a newbie question, but i'm a newbie afterall.

btw i'm using the acrisio superss server

SuperSS not work with THAI version-> only usa

By the way you need s7 iff editor ... and no release atm , i doing it actually