i did..but the same thing happend

hi guyz...i have an ipod touch 4g runnin 4.3.3. After i hav run jailbreak me...cydia is installed..and when i tried to sync apps from itunes...it says an unknow error occured (0xE8008001). basically i cant sync apps...i even tried using redsnow...in the end i get the same error...wats happening?..any help is highly appreciated..Thanks