Help needed to download form 16a after correction

Hi we have filed TDS details for the fourth quarter. But later we had to correct an assesee detail as it was wrongly entered and filed it on 13-07-2013.
              Now when we try to download the corrected form 16A from TRACES with the Token number of the corrected statement of TDS, it is showing the error 'Token number is not vlid for reular statement'. Kindly help. From where can I download the corrected form 16A. WHich token number should be given . When I give the token number of the first return it is showing 'wrong details entered'. When I give the token number of the corrected return it is saying 'Token number is not valid for regular statement'. Kindly help