I don't have time this morning to look at your X files, but I did want to point out that MilkShape 3D has more than one X file export.
Use the JT version as shown in the attached image...
Also note that MilkShape defaults the setting to a .1 scale so change that to 1.
Edit
Oh yea, one other thing to consider are bones.
You need at least one per model and make sure the first joint is placed at 0,0,0 on the x,y, and z axis.
Search Milkshape here in the forums because there are several threads that explain the entire process.