How to write in Mongolian (Cyrillic) on Mac OS X?

If you want to write in Mongolian (Cyrillic) on Mac, then you should do following things:

1. Download Mongolian Keyboard layout here.
2. Next, copy the file to following folder: MacintoshHD/Users/(pick yourself)/Library/KeyboardLayouts.
3. Then go to System preferences -> Language & Text -> Input Sources and check MongolianCYR option.
4. Now let's write in Mongolian on Mac OS X.

P.S: This method worked successfully on Mac OS X 10.6.3.