This looks promissing, you have large caps for the voltage rail and the series resistors in the rata lines. The other two small parts may be caps aswell, duno (are there on each port two smd parts with numbers on it and two without ?).
It may be simpler to solder cables direktly to your usb flash pen after removing it from his housing other then fitting it with the relative large usb-slot pcb into the router.
My Stuff: WL-500g, Mapower H31x 10GB HD, Philips Webcam Vesta PRO, TerraTec Webcam PRO, USB Hub