Attention!!! The following method is just possible with models with 1 skin.

load the model in fragmotion. there is the default-position a seperate
animation. remove the default animation. by exporting to mdl7 the
defaultposition is now the same like the first frame.

after this center the model in MED.

Fragmotion doesnt exports multitextures !!!

center model global did not work?

Dude, how do I remove default frame in fragMOTION?!
There is no delete available...

Quadraxas, please read more carefully. Problem is, that while playing animations, origin is under models feet. But, in default position (or frame), origin is in the center of the model...

is it bone animated or not?

Yes, it's animated with bones.

modifiying the root bone position on the first frame should move all frames?

Should, but doesn't. Only position of the first frame changing. All rest of frames, do not change they positions...

would it be a problem for you tp upload the model somewhere? we could try stuff and see if it works

Thats the problem, I can't upload it (them)

why not?