name the icon *.png * for the actual name of the icon...
here's the steps.
1)jailbreak and install cydia
2)with cydia install winterboard
3)install iphonebrowser (or the sort, i just find it easier to use iphone browser)
4)plug in your iPhone and start iphone browswer
5)in iphonebrowswer navigate to private/var/stash/themes.itulx2 (noticed this was the main one and will override the next location)
6)or navigate here private/var/mobile/library/summerboard/themes (secondary location)
6)create a new folder and create a folder inside that one named "icons"
7)rename whatever icon your trying to replace to the name of the icon your trying to replace (LOL, you get what i mean)
8)drop it in the icons folder
9)start winterboard and select the theme you just created
10)respring or reboot
Notice i changed my app store icon, box office, and aurora feint