Re: Template File For Single Activity?
Sorry, forgot about the sidebar issue 
The easiest way to duplicate the layout of your site pages in permalink.php is to copy page.php and replace the contents in that file with the contents from permalink.php, keeping the container structure and sidebar calls from page.php intact, then rename that new file permalink.php to overwrite the old one. Keep a backup of your original permalink.php in case stuff gets screwed up 
