Hi again,
looks as if I'm stalking you, but be assured that's not the case !
You first need to convert this prop into a character with 3DXChange.
Either put it in a T-Pose and use 4-leg motions designed for bipeds, or simply map the bones without twisting them (see picture and profile:
here) and convert the prop.
But in order to use the motions from the horse (or the dog) you also have to convert the horse (dog) again, because the converted bull will only accept converted motions ! Sounds a bit strange, but that's right. Of course, you don't need the converted horse (or dog), but eventually all other converted animals are able to use the converted horse (or whatever) motions:
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