[Plugin: Query Multiple Taxonomies] Custom Post Type Filter not working

Hi, first of all thanks for your work on this plugin.

I am using version 1.5.1 Unfortunately there is not CPT Filtering going on. It just redirects me to base_url/?tax1=value1&tax2=value2 not to
base_url/CPT/?tax1=value1&tax2=value2/ as intended.

I also tried (as mentioned in another thread)

function my_qmt_url($url) {
// post type => associated page slug
$map = array(
‘post type’ => ‘page slug’
);

foreach ( $map as $post_type => $page_slug ) {
if ( is_page( $page_slug ) ) {
$url = add_query_arg( ‘post_type’, $post_type, $url );
break;
}
}

return $url;

Any help is appreciated.

http://wordpress.org/extend/plugins/query-multiple-taxonomies/