Hi all
was recently inundated with this problem. You should be getting the 0xE8008001 Error.
The solution is this.
Hope this will help any of you.
Open Cydia > Manage > Sources > Edit
Add source "http://cydia.hackulo.us" cant post links >.< lol
Section > Hackulo.us > "AppSync for OS3.0" > Read info
Install > done.
Thanks for the iphoneblog.