[iclickjohn]

I just tried it. and no. that was the one from xda developers. I also tried TCPMP or whatever that one is called and it doesn't do anything either.
I have no youtube. It scares me that there is not a thread here for that issue. Is it just me? I've googled it for solutions. I'm not getting anywhere with that either.

edit/ I'm sorry, I tried HTC media player from xda developers. So no I have not tried any specific HTC youtube software. I may search for that and try.