hi pzj99,
i really appreciate for all that trying to help
i'll try explain again :)

my client wants me to create avatars character with animations to be used in Unity 3D .
( which i'm not familiar with these avatar and unity 3d. i'm trying to find out more :(   )
he requested the animation done must be delivered in FBX format so that he can use it in Unity.

so, my qusetion is : is there a effective way that i can convert my poser character with animation
into FBX formats ?

hope i make it clear this time :)