I am trying to set up a DS3 controller for use with lilypad on PSX2. for that I need libusb and that needs to be installed with a fix from here. The problem is that when I reach the 9th step for windows 7-up, I get this:
Click image for larger version

The option for updating, rolling back, disabling, and uninstalling drivers has been greyed out, and is not clickable.

I need to use the update drivers option to use the custom libusb wrapper. How can I do this?

Thank you for your help.