the xxx is whatever application i'm running, which is all of them. im using a jailbroken 2.1 iphone with itunes 8. i have cracked apps that i'm trying to install. they install except when i go to open them i get this error message. I haven't downloaded any apps from the appstore, just the cracked ones. i've tried downloading the mobileinstallation patch through cydia and it still doesn't work. how can i fix this

all the jail broken apps (cydia and installer) and also the original iphone apps still work. same with mxtube and all that. it's only the apps that i wanna sync through itunes