wp-ecommerce tweeks

Hi all, i recently installed wordpress and wp-ecommerce on my web server.

i use the site for selling virtual game gold, and need to fine tune the plugin to my needs.

for example, on the sidebar, i would like to show the number of items available in each child category.

for example: this is how i would like my list to display.

——————————

-Game Worlds
-World A [3]
-World B [2]
-World C [1]

——————————

Also, is there any ways to list the child categories alphabetically?

thanks!