Hi Paul & welcome to the forum
Right lets start with some basics. I assume you have read the instructions, but did you connect the camcorder before you installed the software? Many USB devices need to have the software installed before the hardware as USB is auto detected and Windows tries to install the best available software. If the correct software is not found it then gives its best guess.
Unplug the camcorder from the USB port, remove the camcorder from device manager(and any software you have installed for it). Reboot the PC, reinstall the software, reboot and then connect the camcorder via USB. Hopefully Windows will detect the camcorder and install it with the supplied software.
Hope this helps.
Mark.