htacces protection causes problem with plugin

Hi guys, i have a problem i hope you can fix.

My site (www.rollingstoned.nl) is password protected with htaccess file because i’m still testing it and i can’t go live yet.

I have installed a plugin called wpx bannerize (from wpxtreme) and it causes the following error.

Fatal error: Call to a member function display() on a non-object in ....(url)/domains/rollingstoned.nl/public_html/wp-content/plugins/wpx-bannerize_000036/classes/core/wpxbz-banner.php on line 481

I is caused by the htaccess protection, because when i turn that off it works fine. Is there a way to allow the plugin to work correctly by modifying the htaccess file? I can’t turn the protection off, yet i must be able to show the working site to people :-/

Thanks!