You are right, on a new 10.8.5 installation in a VM Gatekeeper rejects the app. So after signing everything individually, you can get it from
https://dl.dropboxusercontent.com/u/773 ... -1.1.0.dmg (edited to point at the later discussed version).
- moved the qt_menu.nib from the QTGui resources to the main resources folder of the App (as per some obscure hint somewhere on the web)
- gave the dmg the name "MT32Emu 1.3.0"
- the dmg got slightly smaller (mostly because it doesn't have the folders .fseventsd, .DocumentRevisions-V100, .TemporaryItems and no .DS_Store file)
So, Sergm, I think you can put that up on the official dl page
