You might see if you may be able to manually install them through Device Manager. Once in Device Manager double click on this device, and select that driver folder when you updating the driver like in the tutorial below.
Would I be correct in assuming that that is from the original install disk that came with the device. If so you might want to try the Vista 64 bit (doesn't look like they are making a Windows 7 driver for it) driver from Leadtek,