[Image-SIG] import tk module error

[amartin8 at illinois.edu]

hello,
i am working on a project for school using tkinter and the python imaging library. i would like to create a PhotoImage and display it in my GUI. i am able to use all of the functions from the Image module, but whenever i try to use the ImageTk module, i receive import errors. specifically
ImportError: No module named _imagingtk
i am using a school computer and thus do not have root access, however the other modules i have tried to use are working. is there anything i can do to get this module to work?
thanks
austin