There is a ROSE Online section but its not as easy to find. Consider its part of the "Other Games" section, not on the main area.

http://www.onrpg.com/boards/48985.html - Stickied from the Free MMORPG Section saying "ROSE Online Section"

http://www.onrpg.com/boards/rose-online/ - ROSE Online Section

Anything related to ROSE can go there since its quite active now.

---EDIT---
Wow. it took me that long to type all that up... I'm surprised.