Hi, guest (G. Kim). The mean of ID(identification) is the same with "login name" or "account name". If you want to have an ID on KIDS, you have to send a registration e-mail to sysop of KIDS. address of KIDS sysop : sysop@kids.kotel.co.kr Also you have to send the mail only for the first three days (1-3) of each month. Sysop sad the reason is registration applys are so many. I think you didn't send the registration e-mail for the first three days of the month. Good luck.