http://www.freicoin.org/two-frc-wallets-and-an-accidental-btc-transfer-t95.html
I recovered them with a wallet switch. I think i couldnt dump the key because my btc wallet is encrypted.
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Status: 0/unconfirmed
Date: 1/6/2013 22:18
To: 1EX4ZGuyRtmhoYaF9v12fDG9Y5d3YnDjLp
Debit: -9999.79973030 FRC
Transaction fee: -0.00000000-110349788489173156311181700805/316912650057057350374175801344 FRC
Net amount: -9999.79973030-110349788489173156311181700805/316912650057057350374175801344 FRC
Reference Height: 14475
Transaction ID: 52ac4bdeefe9077da8b1febb2879bba98ee18b938d8798b21bbb785912a32b6f
Status: 0/unconfirmed
Date: 1/6/2013 22:18
To: 1EX4ZGuyRtmhoYaF9v12fDG9Y5d3YnDjLp
Debit: -9999.79973030 FRC
Transaction fee: -0.00000000-110349788489173156311181700805/316912650057057350374175801344 FRC
Net amount: -9999.79973030-110349788489173156311181700805/316912650057057350374175801344 FRC
Reference Height: 14475
Transaction ID: 52ac4bdeefe9077da8b1febb2879bba98ee18b938d8798b21bbb785912a32b6f
19:28:46

dumpprivkey 17hzwJdxajvkNnPpiyKvUTbAaRKehtTtWw
19:28:46

Private key for address 17hzwJdxajvkNnPpiyKvUTbAaRKehtTtWw is not known (code -4)