Whenever you change templates, you have to go to Admin/Tools/Layout Boxes Controller and click the reset button (bottom of the page) to turn them on. There's an add-on here that saves your sidebox settings: http://www.zen-cart.com/index.php?main_page=product_contrib_info&products_id=260
Are you using the override system? If you customized the define pages, and copied to your override folders in includes/languages/english/html_includes/your (previous) custom template, they should still be there. Just make a folder for your new template and copy the define pages (from your previous template) into it.
If you did the above, check and make sure all instances of your template are named the exact same.
Hope this helps!



