Main & Parents Categories problem

Dear All

I have lot of problem to install the plugin

We need to working like this:

Category 1
– Parent Categorie 1
Category 2
– Parent Categorie 2
Category 3
– Parent Categorie 3

Search

But for the moment all categories are display on the same level!
http://www.mini911.com/test-page/

Many thanks for your help
Regards

Pierre

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