QNX 4.0 USB DDK

I am using QNX 4.25 and need to interace a USB device. The manufacturer
will give me the necessary information, but all the links to the QNX 4 USB
DDK seem to be very old and don’t seem to work. If it matters, I must
access the system from a WinXP machine, as the corporate firewall will not
let me through from any other computer.

Thanks