SJ VM Categories II v1.0 & v2.0 - J1.7 j2.5
We supported 4 themes with tooltips for showing the module. When you hover on title of parent categories, tooltip will show title and numbers of their subcategories. Otherwise, you can show more/hide list of categories if you want.

http://www.smartaddons.com/joomla/extensions/item/231-sj-vm-categories-ii-joomla-module

http://www.mediafire.com/?tobcyv8oaha8vgu
http://pan.baidu.com/netdisk/singlepublic?fid=345172_1020938202