about placing pictures beside categories

[angelbaby]

how do i place a picture beside a category. like i want to put a thumbnail picture beside photoshoots and one besides candids. here is a gallery with an example of what i mean. http://www.gobritney.com/

[Joachim Müller]

http://coppermine-gallery.net/demo/cpg14x/docs/index.htm#cat_cp