Rails - Mar 2006 - file_column value always null

Hello,

I am trying to use file_column to upload images.  I went through the
examples and correctly have the file upload button and field working
in a create form.  When I save the new record the file_upload column
is always null.  I updated the model and everything else appears to be
correct, however I assume it is some sort of configuration issue.  Any
guidance would by greatly appreciated.

Thanks,
Dan