First , I don't think it is a prob of locating the x-packer , I have located in different places too but it works for me . In PS2 , locate your pac file (in this case , your carlito pac file ) in the desktop , then in x-packer , open it as a PS2/PSP Wrestler , then EXPORT ALL textures in a new folder in the desktop , you will automatically get tm2 , then open Optix studio ( I don't know the spilling ) and click marco proccesing and that way it can work with no probs !