add categories in Rokquickcart joomla extension

hello, i currently use rokquickcart joomla extension for my store. this is a very simple shopping cart for joomla that displays products in a single page + pagination see extension here: [login to view URL] i would like to be able to add the following feature: add categories from the joomla admin and set the specific category for each product sold in my store. right now you can see my store on [login to view URL] above the products, there will be a line with the name of categories and under this, there will be another line with the current path of the store. for ex.: category 1 | category 2 | category 3 | category 4 home> category 3 the name of the category must appear in the url. NB: i use html add to cart buttons from ccnow. wherever the visitor goes through categories, if he adds products, the products must be added to his cart i guess its not a too complicated task for a good coder! :) thanks for bidding!