yes htc is supported at 100%,many test report for success unlock htc models exemple here :
http://forum.gsmhosting.com/vbb/show...3&postcount=33
after u see this :
Device Connected...Sending App...
Please Push YES in You Device Screen
Please Wait Black Screen...
Delaying Detecting New Device...Wait...
Device connected OK...
disconnect phone,connect again then press read codes
luck