Prestashop count news and forum update

Need to write a module / modify functionality for cms prestashop 1.4.9. It is necessary that the appearance of the news or the appearance of new forum, appeared the figure is appropriate number of emerging themes. For example there was a day 3 entries on the blog, it is necessary to bring the number 3 above link to the blog. After the buyer / user is logged in will go to the blog of the figure disappears. And the counter starts counting from 0. For each customer counter should be considered separately through the cookie. Please write rates and terms below. To know the structure prestashop must! The example in the screenshot To know the structure prestashop must!