If it was bent slightly you could try bending it back gently. If it bent to the point of kinking mast is shot. You can get new mast from Ford, you don't have to replace the whole assembly.
Edit:
p.s. Gets a little risque at the end but you can also read this thread: http://www.contour.org/forums/ultimatebb.php?ubb=get_topic;f=3;t=006998
98 Mystique LS v6 atx 110,000km
97 Contour LX v6 atx 125,000km
stock CD on LS, cass on LX
spoiler, tinted windows on LS only
4 wheel discs on LX only
All other available options on both
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