Didn't read through the thread, but this should help ALOT
Enjoy.
http://forum.xda-developers.com/showthread.php?t=391262&highlight=voice+command
MS Voice Command announces calls just fine on my HTC Touch (Vogue). I didn't install a cab, I cooked MSVC into my rom using the PPCKitchen.org kitchen.
Certain builds of MSVC work with certain roms, you have to have the right settings...it's a pain to get it to work. You just have to find the right combination of your Windows Build and the MSVC Build
I'm using the WM6.1 Build
20748 and MSVC
1.6.19965.