Getting proper animation data from a xfile is pretty tough and non reliable. Getting them from DBO file is non existant.
Only thing I can think of is when you import them into fragmotion, look at the fpe file and take note of the frames at the bottom of the file, Select animation keyframes in fragmotion and scale them to the listed last frame of animation. This may get your animation back to being close of what the original is. I use 3d max to do this and the results are very spotty depending on how the xfile was created.
Unfortunatly, most times you will need to rerig the model and re animate and re export to xfile.