I have sent 1BTC to the address 1CounterpartyXXXXXXXXXXXXXXXUWLpVr, and it has been confirmed. But it is shown in
http://www.counterparty-explorer.com/ "error: not confirmed yet. Anyone know the reason. What should I do? Thanks.
Sorry, that's a bug and I will fix it as soon as I get time. Please check blockscan.com to confirm.