MATITK use of functions not on it's given list

Hi, in the MATITK help file for some of its methods, they mention methods that are not in the list of available operations. Are those methods not available to use in MATITK?

ex (image registration):

I want to obtain the deformation field for using demon registration. the MATITK help section for demon mentions methods GetOutput and GetDeformationField, but those don't seem to be in MATITK.

[Walter Roberson]

This question appears to reference the MATITK library introduced in http://www.mathworks.com/matlabcentral/newsreader/view_thread/113714

[Ashish Uthama]

Ka Zhang, contacting the authors directly might give you the quickest answer.

Posting what you find here might help others who may have this question after you :)