I've tried a few apps now, that people have used on other devices, without any luck. They either don't do anything or stop the buttons from doing the volume.
I think the reg is under HKCU somewhere but haven't had a good look yet.
I want to find the reg entries that pertain to the up down for the dpad and then find the reg entries for the volume buttons when held down and change them for the ones for the dpad.
Problem is i don't know what they are called. Yet
HTC Sensation s-off
HTC Sensation XL s-off