Can’t figure out how to add Post Count to Categories in Sidebar

That did the trick, but it seemed to have bumped my categories down like so:

http://sevenstripes.com/blog/

any ideas on how to put the Post Count right next to the Category?

I changed the code back so my Categories didnt look gaffed up on my website. But, it looked like this:

Domestic Politics (U.S.)
(7)
Europe
(2)
Islamic Extremism
(8)

Instead of this, what I want:

Domestic Politics (U.S.) (7)
Europe (2)
Islamic Extremism (8)

I don’t want to add the numbers to the end of the category links… I want the number of posts in that category to be automatically displayed next to the category as shown above, instead of underneath, as also shown above.