I can confirm that the new Sound Track and Talkie bits are working in the Windows tweak of ScummVM found on page 8.
I'm playing it right now!!!
They did a GREAT JOB on the production of this, and having the classic graphics I think is the better of the two options. Not that the new Graphics blow or anything, in fact they are awesome, but THIS is how I'm used to Monkey Island looking, quirky mouth movements and all. It only adds to the comical appeal, and as they say in the video I posted at the beginning of this, the early programmers crammed a LOT into such a limited color palette and in such a low resolution.
I gotta go write the author behind the Wii port now.