Since you no longer need a kssn i figured i may as well post it~
Credit goes to KEL331 for informing of this news.
Anyway you begin here: https://member.nexon.com/join/join.aspx
Note: It seems to work better with internet explorer...
Check the four check boxes to agree to their terms, than proceed to click the left -purple- button. (and if you can read korean...make sure to read it!)
This page is as simple as they get: just fill in your basic info. Email, Username/Nickname, Your password twice, and your age (also if you're above 14, keep the left button checked).
For the password:
It must contain 7 characters
It must have 1 letter and one number
It must not have any character that repeats 3 times, or in order (ex: aaa or 123)
After you finish, you will get a email from nexon, go check your inbox and click the link provided.
Just reenter your password and you're done!