Category page archive.php not showing template

Why is the sidebar1.php not being shown in the Category pages?
http://example.com/main/category/category-name/

the page does not show this file.
<?php include (TEMPLATEPATH . ‘/sidebar1.php’); ?>

It works fine for the
Main page:
http://example.com/main/

Post pages:
http://example.com/main/%postname%/

On my permalinks I have: /%postname%/

Thank-you