Worked for me on an AT&T HTC inspire.
I did have to install the HTC Inspire Sync crap to make it work due to their USB drivers being proprietary. Just make Sure you close the app and kill it from the system tray before you run this or it fails.
where can i find a usb driver for an inspire from att?
Just google "htc sync" and it will give a link to the file at htc.com
It should have installed the usb drivers when you plugged in the phone for the first time however.
Bryan