i have an IPT 2G MC model that was just update to 4.1 and then jailbroke with greenpoison. i had a nice theme called IOS4.0 that i used when i was on 3.2.1. i tried to use it after going to 4.1 and it doesn't seem to work. are themes backward compatible? in a related question, i can't get a user wallpaper to show up on the springboard despite having the option checked and at the top of the list in witnerboard. thoughts?