I haven't got a glue either what exactly you say, but one thing I found for sure in borodas "about" screen of the russification for the 600:
- Autorun from /Data
is this what you are looking for?
reading the russian threads was a bit cumbersome for me, too. But at least I managed to get the russification on my reader. I didn't really care about replacing netherlands with russian, but I wanted the clock again.