Quote: "it only showed the foot or the head"
Ahhhh... so it does actually load them!
Could it be the camera position? My guess is that the camera and/or model is not positioned/rotated correctly and the end result is that the camera is actually inside part of the model. (This can also happen if the model is bigger than you think it is).
As object inner surfaces are culled (not drawn), they appear invisible. The bit you do see is a part of the object you are viewing from outside, so a head or foot on it's own is entirely possible.
Quote: "I'll try saving it as a text file and I'll see if that loads the entire object."
Saving as a text file
shouldn't make the slightest bit of difference.
I think what you need to do is use AutoCam Off, manually position the camera and then manually point it at the object.
The object by default appears at 0,0,0 so if you don't position it anywhere else, that's where you point the camera. You can then experiment with the camera to object distance until you get the model fully in view.
You should also set the object's axis of rotation at the centre in Truespace before saving it.
TDK
