Need help adding author attribution to wiki plugin

I'm trying to get author attribution to show on wiki pages created with the wiki plugin.

Actually, I'm trying to get author attribution and the WooThemes Canvas author box to appear.

It would seem simple enough to add the following to my child theme functions.php file:

/*
Add author box to another (wiki) page template
*/
/*-----------------------------------------------------------------------------------*/
/* Author Box */
/*-----------------------------------------------------------------------------------*/
if ( ! function_exists( 'woo_author' ) ) {
function woo_author () {
// Author box single post page
if ( is_single() && get_option( 'woo_disable_post_author' ) != 'true' ) { add_action( 'woo_post_inside_after', 'woo_author_box', 10 ); }
// Author box Blog page
if ( is_page_template('template-blog.php') ) { add_action( 'woo_loop_after', 'woo_author_box', 10 ); }
// Author box Wiki page
if ( is_page_template('incsub_wiki.php') ) { add_action( 'woo_loop_after', 'woo_author_box', 10 ); }
// Author box author page
if ( is_author() ) { add_action( 'woo_loop_before', 'woo_author_box', 10 ); }
} // End woo_author()
}

But this doesn't work.

Here's a sample wiki page:
http://www.farces.com/wikis/naked-server/wiki-analytics/
(These pages should (but do not) have author attributions)

Here's a sample Page page:
http://www.farces.com/about-arts-farces-llc/
(These pages should not (and do not) have author attributions)

Here's a sample Post page:
http://www.farces.com/the-green-marble/
(These pages should (and do) have author attributions; at the top (a byline) and at the bottom (author box)

I've only been using WordPress since April and I'm not a coder (although I know enough to be dangerous), so please be gentle.