I had some big probs with CharacterFX like destroyed, deformed Meshes, then switched to FragMotion. Works very well now. The most surprising feature was that FragMotion added bones automatically right after importing my model. The b3d exporter works very well.
http://www.blitzbasic.com/Community/posts.php?topic=41331
http://www.blitzbasic.com/Community/posts.php?topic=41331