Thank You, broken. I set persistent address now.
I've got this address: https://blockexplorer.com/address/1A3fqJJTzNEH9pUMpGDwnQS251rZktRLRq
As you can see there are two transactions connected to this address. But in my Bitcoinqt program I see only the first one. Should I rescan blockchain or something?
And from which p2pool version there was a blockchain split?