Hi, my name is K
its not very hard to import a model into jme and play animations.
The textbox and button could be done in jme with jmedesktop, which lets you render swing elements in jme.
Or you draw a jme canvas inside a swing or swt application.
visit:http://www.jmonkeyengine.com/movies_demos.php
click 'run all demos' and select jmetest.util.JMESwingTest to see an example.
Thanks a lot.