Armor/Cloak Animation Question

Hello RageZone, I thought I'd come to you guys to see if you could help a noob out.

I've been doing 3-D Modeling for Flyff for a month or two, and the only area I've spent all my time in was Weapon Modeling. I decided to try making a new cloak model. I saved the .obj file, converted to .o3d, and when I was testing it ingame, the model was stiff as a rock. My friend also tried doing armor, but it wasn't wrapping with the character's body, instead, just was in the spread eagle position he edited it with in Blender.

I was wondering if anyone knew how to convert, or assign an animation to a weapon/armor/cloak, and was willing to help teach me and others who might be curious.

Any information would be greatly appreciated.

Thank you for your time looking at my problem.

(Btw, if there's already a thread for this, could you post a link? I never did do a search, thought it'd be easier to ask)