I have made two versions, one full install, and one upgrade (just the main aplication and reg).
Have also made a cab of the IMO best volumecontrol (that I could find), works very well with youtube, have its own litle "volume meter", so no more full screen volume control in the youtube application, can recommend you upgrade to this two, for best performance on YouTube.
The volume in youtube also works in landscape, just could not get a decent screenshot of it.
Q: Would the you tube app work on a raphael (verison touch pro)?
A: Should work I think, though have not tried it on pro.
Q: How can I see the version of youtube app?
A: To see version, go to "HKEY_LOCAL_MACHINE\SOFTWARE\OEM\MASD" and look for "YouTube". Alternative go here: http://forum.xda-developers.com/showthread.php?t=473496
Q: Should this work on the HD?
A: No only for VGA screen, this is from HD, so you should already have the "Programguide", if you have the HD, so no need to upgrade.
Just transfer the cab to your device, click on the cab and install to internal memory (if asked), and then reboot the device at the end of the installation, thats it...
I recommend that you take a backup of your device, using spritebackup or other application for this matter, before installing the cabs, so you can always go back if something should go wrong. Am personally using the apps on my device (costum ROM 2.0.3).
Use the cabs on your own responsibility!