You might have been the one that posted this on NCKFA, so you may have already got your answer.
IDs are posted the night before the 1st of each month. Just print it off and write your screen name on the ID. They usually have a back up number that they post each month in case you cant get the ID printed in time and will give you a few days to use the number instead of the online ID.
Ive fished the online tournament the last 2 years and Im looking forward to doing it agian this year. Ill be out hunting crappie first thing tomorrow morning.