I've been installing my new purchase of Miroslav Philharmonic 2 - downloaded and installed the sounds. I see there's a bunch of 'updates' in the extra resources and I saw another post from a while ago that they were needed by some people to make the instruments appear in the player and SampleTank. I seem to have it working fine without them - although I'm not actually sure I got all the sounds installed, there were a lot of installers.
But another thing that happened with the updaters, just to see what would happen I tried installing a couple but they both said the sounds could not be found to copy over.
So, I'll run with it as is - having fun with the few minutes of playing around I've gotten so far.