Shoutbox show only in index template

[.m.]

Edit: delayed response

open the plugin file (./inc/plugins/dvz_shoutbox.php) in a code editor like notepad++
find code

$plugins->add_hook('index_end', 'dvz_shoutbox');

replace with below code and save the file

$plugins->add_hook('global_end', 'dvz_shoutbox');

now you can check whether adding the code {$dvz_shoutbox} to the header template works ..