This is a video on how to backup and restore your jailbroken apps and other things likes tweeks, themes, ringtones, settings, SBsettings, sources, etc.
Go into Cydia and your going to go and search for xBackup. Once you have that, you can now install it and then after exit Cydia. Open up xBackup and hit backup and it will create a backup point titled "todays date" click it and upload it.
After Updating or Restoring your iPhone, iPod, iPad, to 4.3.3 Re-Jailbreak the device and go into Cydia and download xBackup and install it. after that open it and go to the restore section and select the date, and hit download. then hit restore and wait about 5 to 10 seconds. then all your jailbroken stuff will return.