Dynamic ad_* templates contents - how?

[FractalizeR]

Hello.

How can I register variables to ad_* templates? I want to place there simple banner rotation.

But I see the following:

PHP Code:

        // advertising location setup
        $ad_location['ad_header_logo'] = vB_Template::create('ad_header_logo')->render();
        $ad_location['ad_header_end'] = vB_Template::create('ad_header_end')->render();
        $ad_location['ad_navbar_below'] = vB_Template::create('ad_navbar_below')->render();

        $ad_location['global_header1'] = vB_Template::create('ad_global_header1')->render();
        $ad_location['global_header2'] = vB_Template::create('ad_global_header2')->render();
        $ad_location['global_below_navbar'] = vB_Template::create('ad_global_below_navbar')->render();
        $ad_location['global_above_footer'] = vB_Template::create('ad_global_above_footer')->render();

        $ad_location['ad_footer_start'] = vB_Template::create('ad_footer_start')->render();
        $ad_location['ad_footer_end'] = vB_Template::create('ad_footer_end')->render(); 


in class_bootstrap.php. The link to vb_Template instance is not retained and I cannot call register() on it to register my variables to that template.