The command "cr_create_content_file" should be included in every copy of OpenACS.
It is located in packages/acs-content-repository/tcl/content-procs.tcl
First check that the procedure is defined in that file.
If not you'll need to figure out why your copy is different than the original OpenACS version and add the procedure back in or get a copy of the original OpenACS version of the file.
