GTA: VCS comes with 2.81 firmware
and if you have problems with the psp usb cord, its not your computer, its your cord. Different cords come with different usb speeds, some, too slow for your computer, some, just the right speed. There are also cords made for very crappy computers, but they come with a some sort of speed enhancer
also, did they come with a new firmware version already?
oh btw, im surprised no one even thought about this article.