If you have content in the resource section of a Sakai shell and you'd like to move it to a different shell, you can easily do so by following these directions: How do I copy a Resources file or folder from one site to another site?
If you want to copy more than items from your Resources tool from a previous course shell to a new shell (including Gradebook settings, assignments, rubrics, etc.), you can easily do so by following these directions: How do I import/copy content from another site?
If you need further assistance moving content from one course to another, please submit a help ticket.