category icons

Dear Sir or Madam,
I’ve just download the category-icon, category-images and the “add-posts-to-pages” plugins, installed and activated them from deshboard panel.
But, what ever I’m doing, i can’t show any icons at the titles of the categories. I can add an Image to the “edit” section of the category, but yet, I do not see them when I enter the category page.
I will appriciate your kind AND IMMEDIATE HELP,
thanks,
Asaf Haiim Preiss