Blog & User Creator with HTTPS: IE mixed content error

Hello,

I've discovered another mixed content error, this time for the Blog & User Creator plugin. When it's enabled and the user views the admin area the calls to the plugins css files are over http rather than https.
(lines 37 & 38 when viewing the source)

<link rel='stylesheet' id='bau-css'  href='http://schblogs.com/test1/wp-content/plugins/blogs-and-users/css/bau.css?ver=3.4' type='text/css' media='all' />
<link rel='stylesheet' id='bau_jquery_ui-css'  href='http://schblogs.com/test1/wp-content/plugins/blogs-and-users/css/external/smoothness/jquery-ui-1.8.13.custom.css?ver=3.4' type='text/css' media='all' />

In class_bau_admin_pages.php lines 91 & 92 read:

wp_enqueue_style('bau', BAU_PLUGIN_URL . '/css/bau.css');
wp_enqueue_style('bau_jquery_ui', BAU_PLUGIN_URL . '/css/external/smoothness/jquery-ui-1.8.13.custom.css');

there are also calls using "BAU_PLUGIN_URL" in action_page.php so you might want to check those too.

If there's any other info you need please let me know.

Thanks
Jack