Don't worry, I've figured it out. For anyone else with the same problem they live:
username/Library/Preferences/Adobe InDesign/Version 6.0/en_GB/Find-Change Queries/…
on PC they are (Vista 64bit):
C:\Users\[user_name]\AppData\Roaming\Adobe\InDesign\Version [version]\[UI_language]\Find-Change Queries
[version] could be 5.0 or 6.0
[UI_language] could be en_GB, en_US, es_ES, hu_HU, ja_JP, pl_PL, etc. why in IE version sold in Europe there is jp_JP ?
 I remember why I've tried to check different values in registry to change UI interface and this is "side effect" [/edit]
in 5.0 version there is no [UI_language] subfolder