when you see the blog, you may have the problem to install driver for those two Phones, why?
the download driver might be old and doesn’t contain the information about new released Phones.
you can open the USB driver folder, there is one file [android_winusb.inf], here is mine by default. two sections are highlighted
; HTC Dream
All you need to do is manually add the Adbinterface information to both seconds, then install the driver again.
; HTC Wildfire