To post to any of the game forums (including Ragnarok), you have to do the following:
- Go to the Atlas forums.
- Click User Control Panel in the top left.
- Click Usergroups.
- Select the "Play By Post Players" button.
- Click Submit.
That's required for all game forums, not just mine. A little inconvenient maybe, but it seems to keep spammers out.
Let me know if that doesn't work!