P2 no side bar and listing categories

Hi all

my req is no side bar and just displaying the recent posts at the end of the page, where there a lot of site real estate to read and write and everything is on the bottom.Simply, Displaying the entire sidebar at the bottom of the page.

Also i had a doubt, when having custom categories, i made all 6 of the categories into default blog types, gave them custom icons too.So while posting, the user will click on the category and start posting.
Firstly, how do i mention next to the categories that one has to click em.cause i myself could not understand the meaning of those buttons frankly.
Secondly, if a guy is coming only to read stuff and not post, how do i mention a category toolbar on the top of the page/site that has static category links(6 in no.) on clicking which, the user shall simply start reading all the posts under the category. Currently, i made changes to the categories, but those categories are the changes made in P2, how is wordpress recognizing them ?

plz help