Hello Bogdan!
You can send your score and Playback Configuration (xml file and data folder) to
Depending on your system and Sibelius version, the Playback Configurations can be found in one of the following folders:
Documents and Settings\your username\Application Data\Sibelius Software\Sibelius 6\Playback Configrations
or
Documents and Settings\your username\Application Data\Avid\Sibelius 7\Playback Configrations
Windows Vista and Windows 7:
Users\your username\AppData\Roaming\Sibelius Software\Sibelius 6\Playback Configrations
or
Users\your username\AppData\Roaming\Avid\Sibelius 7\Playback Configrations
Mac OS X:
Users/your username/Library/Application Support/Sibelius Software/Sibelius 6/Playback Configrations
or
Users/your username/Library/Application Support/Avid/Sibelius 7/Playback Configrations
Best,
Andi