Just received my Mayflash Snes USB Adapter in the mail. Sadly, it doesn't seem to work

I'm currently running Windows 7 64bit. I have tried plugging it in to all my usb ports. Windows 7 finds the device, and it is available in controller setup in control panel, but when i test the device I get nothing.
Non of the buttons register, same for dpad.
Has anyone got this device to work with windows 7? Im using an official PAL Snes controller. I have spent £35 pound on both the adapter and controller. I would love to get it to work.
I have checked the Mayflash website, but I cannot find an updated driver for it.
Thanks for reading
