Alan, at version 4.30 there is no data in the SPS vault. It is all stored in the MAS90 data files (encrypted, of course). I would either create a separate MAS90 instance, or a copy of the company, and do my test conversion there. This would convert all the data tables and put all the cards into the SPS vault, but the original copy of MAS90 would still have the encrypted cards in the AR_CustomerCreditCard table and could be converted again when you're ready to do the live migration. If you use an SPS demo account, or a standard account in a demo mode, you can just clear the test conversion cards. The vault did not become available until version 2013.