THANKS! It works
Although it didn't started at first. I restarted the phone. But no change in managing applications: "move to sd" button was grey and disabled. After about 5 minutes later - a mirracle
the button was enabled and i managed to move some apps to sd card
I've just downloaded an update for FB - and it automatically went to sd card, I guess. Because I can't see it in "apps on sd", but it asked about permission to write to sd card and the internal storage space didn't get lesser.
By the way, I've updated android to 2.3.5 before. So, this works with it.
That's all just my experience - maybe it will help someone